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U Channel Aluminium Alloy Light Blocking Strips for Roller Blinds Light Gap Blockers Window Shades Side Rail Tracks Bedroom Sleep Nursery (White,58",4Pcs)

  • Based on 195 reviews
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Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon

Arrives Feb 12 – Feb 22
Order within 21 hours and 12 minutes
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Color: U-shaped White-4pcs


Size: 58‘’


Features

  • Aluminium Alloy
  • Imported
  • Why we need to install light blockers for shadesMost blinds and shades are smaller in width than the window to avoid the fabric rubbing against the wall when the blackout shade is raised or lowered. If your blinds or shades are always leaking some annoying light, then we suggest you install ZSTARR light blocking strips.
  • Latest U-shaped Aluminium Alloy Light BlockersZSTARR light blocking strips are made of thickened aluminum alloy track and would last. It is designed in a U-shap and installed along sides of the window shades and blinds. Achieve stop the light from coming in through the sides of your blackout blinds & shades. Create a dark environment for you and helps protect your privacy and quality sleep.
  • Easy To InstallSize: 58 x 1.6 x 0.99 inches (2PCS). Accessories: side cover (2pcs), Installation instructions and screws. You can cut the light blockers by the cutting machine to suit your need size that perfectly fit your roller shades. All you need to do is fasten the light blockers on the window frame with screws,also the side light blockers can be used repeatedly after removing the screws.
  • U-shaped Light-blocking Side TracksThe blackout side tracks for blinds perfect for those who work at night and sleep during the day. Also, this blackout window inserts can provide you a dark environment when you want to watch a movie at home during the day one day. Apply to roller shades and blinds, zebra shades and more(Cellular shades, honeycomb blinds not applicable). Recommended for inside mount blinds.
  • After-sales ServiceWe provide high-quality product and service for every customer, If accessories or products are missing or broken, please message us and we will resend the accessories or products. If you are not sure if your window type is suitable, please check with customer service before ordering. (Attention please the thickness of the lower rod should be less than 0.5in and the leakage of light should be less than 1.5in,otherwise the light blocker strip won't fit your roller shades)

Material: Aluminum


Product Dimensions: 58"L x 1.6"W


Brand: ZSTARR


Color: U-shaped White-4pcs


Opacity: Blackout


Material: Aluminum


Product Dimensions: 58"L x 1.6"W


Brand: ZSTARR


Color: U-shaped White-4pcs


Opacity: Blackout


Recommended Uses For Product: Indoor


Specific Uses For Product: Window


Room Type: Nursery


Operation Mode: Manual


Special Feature: Light blocking


Included Components: User Manual


Shape: Rectangular or Semicircular


Number of Items: 4


Pattern: Solid


Product Care Instructions: Spot Clean


Size: 58‘’


Mounting Type: Inside Mount


Water Resistance Level: Waterproof


Control Type: cord/chain


Manufacturer: ZSTARR


Item Weight: 6.24 pounds


Department: for window


Country of Origin: China


Item model number: U40 -White-58.5in-4pcs


Fabric Type: Aluminium Alloy


Finish types: White


Batteries required: No


Import: Imported


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 12 – Feb 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • A little expense for what they are, but they do work and are made well
Color: U-shaped Custom Size: 44''-115''
I have a Yoolax roller shade in my bedroom that is surface mounted on a window. Quite a bit of light gets past the edges when closed, so I bought these to help cut down on the light leakage. These are very sturdy and have a soft fabric "brush" on the inside edges to protect the edge of the window shade. I had to shorten these channels to fit my windows, I just used my table saw with a fine tooth blade to cut through the aluminum channel. The plastic cover on both ends is removable, just make sure to clean out the channel as there are some grooves that the end piece needs to fit in to lock it in. I used a thin run of double sided tape to adhere these to the outside trim of the window. The weighted bottom of the Yoolax shade fits nicely in the channel and the shade still opens and closes without binding. Looks nice and the color is very close to the metal valance of my roller shade. ... show more
Reviewed in the United States on March 17, 2024 by E Reed E Reed

  • Great Product
Color: U-shaped White-4pcs Size: 58‘’
I had roller shades professionally installed in a new condo and couldn’t stand the light leakage out the sides. The room was so bright with the shades all the way down. Apparently, Graber doesn’t sell side channels for the expensive shades we purchased and I didn’t even realize it would be a problem until they were installed. I purchased these UChannels from Amazon and had the company that sold us the shades cut them and install them using 2 wood screws. I then had to buy rope caulk and put it behind the channels to block the slivers of light that came through the wood frame and the channels. The room is much darker now and I am happy with the purchase. Before and after pics attached to review. ... show more
Reviewed in the United States on August 17, 2024 by iwanttobead iwanttobead

  • Helps block extra light
Color: L-shaped White-4pcs Size: 79‘’
I got these to put around some roller shades I had installed as they were inside the frame and did not go edge to edge. They certainly work but aren’t perfect. Installation was mediocre. I had to cut these down with a small hand saw and the edge was very rough. I put that at the top behind the valence but probably should have sanded it for safety. The peel off paper on the adhesive was also a pain to remove. It ripped several times when I was peeling so I needed a small razor to find the edge again. The adhesive itself is very sticky. So much so that when I tried to quickly remove it after touching it to the wall to align it better, it took off some of the paint. I don’t think there’s any risk of it falling off, but will update this review if it ever does. I don’t use the hardware or the included as the adhesive felt plenty strong. Similarly, I haven’t added the included blackout tape to line the inside yet. I’m sure that will help a bit. As it stands though, this certainly does help block out some of the light but you’ll really need to use guides to push a shade flush against the inside track if you want it to block everything. It looks pretty good now that it’s installed and I could probably paint over it if I wanted to match the wall color in the future. The value is also pretty good relative to other options. Size is fine now that I cut it down. Overall it’s a good option, though I’d prefer to see easier adhesive tape removal and some kind of included guide to keep it level when installing. Feels easy enough to include a plastic piece that can clip on to each end that can keep the piece square to the edge of the frame when you’re installing. ... show more
Reviewed in the United States on June 2, 2024 by D4st

  • Looks great and easy to install
Color: L-Shaped White-2pcs Size: 58‘’
I have roller blinds in my bedroom which means that there was a 0.5”-0.75” gap on each side so I bough 5 pairs of these and now my room is much darker. They look clean and made of thick material. The 3M tape is pre-installed so you just have to measure twice, cut to size and stick it to your window pane. Some reviews mentioned that it is hard to cut. I have a miter saw so I cut through these easily but since they are made with thick plastic, I wouldn’t advise trying to cut them with shears. At a minimum you’d need a hand saw. I had an issue where one of my orders wasn’t as wide as the other and seller sent me a replacement set right away. Don’t worry about these being too wide because they still look great. See my pics. Not 100% blackout because it depends on how your roller blinds were install but for my family, it’s given us 2-3 hours more sleep with the early daylight we get in Southern California. ... show more
Reviewed in the United States on July 30, 2023 by Ivan C. Ivan C.

  • Great quality, and works!
Color: L-shaped Custom Size: 44''-115''
I was a little reluctant to buy it because I know they aren’t returnable. I measured with my tape measure, confirmed the measurements when they messaged me after purchase and I received them in a very hard cardboard tube so the pieces were not damaged or bent at all. After ordering two sets and seeing how great they were and worked, I ordered two additional sets, and it was very happy with the quality and with the consistency! The measurements were perfectly spot on. I don’t think the black tape is necessary for anything. I think it’s supposed to absorb light, but it doesn’t do anything so I left that off. The tape that comes on the pieces with the adhesive is very strong and super easy to stick up! ... show more
Reviewed in the United States on June 11, 2024 by Lelo84

  • Loved!
Color: L-Shaped White-2pcs Size: 58‘’
So I had just installed new blinds in my kitchen window and it is very big. The blinds look gorgeous except they were a little on the short side width wise and they couldn’t find a size for our window. I purchased these because it fits perfectly on the sides of to cover where light would shine through or at night where they could see from outside in. Will definitely purchase again if needed. ... show more
Reviewed in the United States on July 14, 2024 by Nancy

  • Adhesive way to strong - damaged my wall and the product snapped
Color: L-Shaped Black-2pcs Size: 58‘’
I was setting this up in my kids room on two windows. I managed to do the first window without any issues, but I misaligned the second window and some light was creeping through. I thought oh no problem, I see where I misaligned the initial placement. Wanted to redo my placement and I cannot remove these from my wall! I removed one side of the blockers with minimal issues, but this other side ended up damaging my wall. The adhesive was so strong the blocker ended up snapping as I was trying to remove it. I'm now stuck with half of this light blocker in my kid's window frame and I have no idea how to remove it. At this point, I just need to remove it with minimal damage to my window frame. If you can do this on your first try, you're golden and works like a charm. Slight misalignment and need to redo the placement? Expect a headache. ... show more
Reviewed in the United States on October 26, 2024 by Clay V

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