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SIHOO

SIHOO M18 Ergonomic Office Chair for Big and Tall People Adjustable Headrest with 2D Armrest Lumbar Support and PU Wheels Swivel Tilt Function Grey

    • Based on 12,848 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by SIHOO
Arrives Nov 20 – Nov 23
Order within 2 hours and 5 minutes
Available payment plans shown during checkout

Color: Grey


Features

  • Multiple adjustmentsThe computer chair is designed according to ergonomics and has multiple adjustment functions, which can adjust the backrest, headrest, footrest, seat height and inclination angle, armrests and debugging pedals. This executive office chair can provide you with a customized experience.
  • High-quality backrestWe select mesh woven fabrics with high tensile strength and strong air permeability as the backrest. The mesh backrest promotes air circulation, helps you relax better, and provides you with a comfortable sitting posture.
  • Ergonomic designApproved by the Ergonomics Association, through extensive research on human digital models, ergonomic designs are provided to protect your spine health and greatly reduce your spine pressure.
  • Easy to installThis ergonomic chair has been certified by BIFMA and SGS. The office chair can bear a maximum weight of 150 kg. According to the installation manual, the installation can be completed quickly.
  • Lifetime Warranty This chair is backed by a lifetime warranty. If you encounter any quality issues, please do not hesitate to contact us. Once we have verified the problem, we will promptly replace the necessary parts for you at no cost.

Brand: SIHOO


Color: Grey


Product Dimensions: 28.35"D x 26.97"W x 49.21"H


Back Style: Solid Back


Special Feature: Adjustable


Brand: ‎SIHOO


Color: ‎Grey


Product Dimensions: ‎28.35"D x 26.97"W x 49.21"H


Back Style: ‎Solid Back


Special Feature: ‎Adjustable


Product Care Instructions: ‎Wipe Clean


Unit Count: ‎1.0 Count


Recommended Uses For Product: ‎Office


Pattern: ‎Solid


Finish Type: ‎Powder Coated


Room Type: ‎Office


Age Range (Description): ‎Adult


Included Components: ‎Armrest


Shape: ‎Rectangular


Model Name: ‎M18-M165


Arm Style: ‎With arms


Surface Recommendation: ‎Hard Floor


Seat Back Interior Height: ‎52 Inches


Furniture base movement: ‎Swivel


Indoor/Outdoor Usage: ‎Indoor


Seat Height: ‎21.5 Inches


Seat Depth: ‎12.8 inches


Seat Length: ‎20.08 Inches


Leg Style: ‎Turned Leg


Arm Height: ‎7 Centimeters


Tilting: ‎Yes


Is Electric: ‎No


Is Foldable: ‎No


Chair Backrest Width: ‎51 Centimeters


Manufacturer: ‎SIHOO


Item Weight: ‎37.4 pounds


Item model number: ‎M18-M165


Date First Available: July 7, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 20 – Nov 23

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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Comfortable. Great Value for money. Easy to assemble. Great customer service.
Color: Black
Review Image by Dre Dre
Review Image by Dre Dre
Review Image by Dre Dre
Review Image by Dre Dre
Review Image by Dre Dre
Review Image by Dre Dre
I've been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition. All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple. Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken. I decided to contact Sihoo's customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase. Im about 5'10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down....not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material...not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature. So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don't have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range....and i went and looked at their products before buying this chair as well. ... show more
Reviewed in the United States on September 1, 2023 by Dre Dre
    • Comfortable chair with great back support.
Color: Black
Good: Quality of materials used to build this chair is good, it feels sturdy, I would prefer little stronger spring but it’s meets my expectations. Mesh fabric of seat and back makes it easy to maintenance and keep the overall chair weight low. Best: Back support is great especially for tall person 6’+, and neck support works as expected, plus it can be adjusted to support your neck. Bad: The default position for hand rest is little high, may be it just me but sometime it causes pain in my shoulder . you can move it up though which is not that useful in my case. The seat depth is little less at least by 2-3 inch, I would prefer little deeper seat so it supports thigh better. Overall this chair meets my expectations, it is sturdy, thoughtfully designed and can be used for sitting long hrs. ... show more
Reviewed in the United States on June 20, 2024 by Skp
    • Comfy but lower to the floor than I like
Color: Black
The chair was relatively easy to assemble. I would recommend doing inventory of the parts first, as a friend had a missing part in their package; I did not. Chair support: the back support on this chair is good, but not as adjustable as other chairs I have tried in different working environments. It does what I need it to do. The cushioning is quite durable so far, with consistent use. Height: my biggest issue with this chair is with the height off of the ground. And for this reason, I would not buy it again. The highest setting is much lower than I would normally have my chairs. I like to be a little higher off of the ground. I would search for a chair that set higher than this one. But this really is the only issue I have with the chair. Otherwise, it meets my needs very well. Cleaning: The backing of the chair responds very well to using canned air dusters. And the seat wipes clean with a damp cloth, as does the "chrome" pieces. For the right person, this is an amazing chair, as it provides good support for the price. However, it is not right for me and I will be looking at a different type of chair the next time I buy. ... show more
Reviewed in the United States on October 9, 2023 by Bryce
    • Comfort and Ease of Assembly Shine in SIHOO M18 Ergonomic Office Chair
Color: Black
The SIHOO M18 Ergonomic Office Chair has been an excellent addition to my home office, particularly notable for its comfort and ease of assembly. Designed to cater to both big and tall individuals, this chair offers substantial support and adjustability that helps in maintaining good posture throughout long working hours. The chair comes with comprehensive instructions that made the assembly process surprisingly simple and quick. I appreciated how all the necessary tools were included in the package, which allowed me to set up the chair without needing any additional equipment. The components fit together seamlessly, indicative of the chair’s high manufacturing quality. Comfort is where the SIHOO M18 really stands out. The adjustable headrest and 2D armrests provide a customizable experience, allowing me to find the perfect ergonomic settings for my body size and desk height. The lumbar support is firm and effectively positioned, which helps in reducing back strain during prolonged sitting periods. Overall, the SIHOO M18 Ergonomic Office Chair is a fantastic choice for anyone looking to enhance their seating comfort in an office environment. Its straightforward assembly and robust ergonomic features offer a great value proposition, making it a top recommendation for those in need of a supportive and adjustable office chair. ... show more
Reviewed in the United States on May 7, 2024 by Baibhav Bhattarai

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