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Office Star Low-Back Ergonomically Designed Knee Office Chair

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Office Star Products Low-Back Ergonomically Designed Knee Office Chair


  • Black metal frame
  • Thick padded memory foam seat and knee pad
  • One touch pneumatic seat height adjustment
  • 5 Star nylon base with dual wheel carpet casters
  • Heavy duty nylon base dual wheel carpet casters
  • Lifetime manufacturer''s warranty


  • Overall: 17" W x 22.25" D
  • Minimum Overall Height - Top to Bottom: 19"
  • Maximum Overall Height - Top to Bottom: 22.5"
  • Overall Product Weight: 35lbs

Office Star Products Low-Back Ergonomically Designed Knee Office Chair

Additional Documents


Weights & Dimensions

  • Overall: 17" W x 22.25" D
  • Seat: 17" W x 12.75" D
  • Seat thickness: 3.25"
  • Knee pad: 16.5'' W x 12.5'' D x 3.25''T
  • Minimum Overall Height - Top to Bottom: 19"
  • Maximum Overall Height - Top to Bottom: 22.5"
  • Overall Product Weight: 35lbs


Product Type: Kneeling chairsStyle: Contemporary
Base Finish: BlackBase Material: Metal
Exterior Seat Material: FabricBack Height: Low-back
Adjustable Height: YesErgonomic: Yes
Casters: YesCountry of Manufacture: China


Assembly Required: Yes 

About the Manufacturer

Office Star manufactures a large variety of products, featuring comfortable and utilitarian office seating. With a lot of color and style options to choose from, Office Star is guaranteed to enhance the functionality and comfort of your office environment.

All styles and models of Office Star chairs are available at Wayfair.


The Low-Back Ergonomically Designed Knee Office Chair is a Contemporary style product. Contemporary style bridges the gap between traditional and modern. Pieces feature simple and clean lines with smooth surfaces without any carving or adornment. You can shop for more Contemporary Office Chairs in the Office Seating section of our site.

Office Star Products Low-Back Ergonomically Designed Knee Office Chair


“Hi, what is the weight limit for this chair?” asked by Ariana

"Hello Ariana, the weight limit is 300 lbs." Colton from Wayfair

Still have questions about this product? We're here to help

When you buy a Office Star Low-Back Ergonomically Designed Knee Office Chair online from Wayfair Supply, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Office Star Part #: KCM1425 here. If you have any questions about your purchase or any other Office Chairs product for sale our customer service representatives are available to help.Whether you just want to buy a Office Star Low-Back Ergonomically Designed Knee Office Chair or shop for your entire business, Wayfair Supply has everything you need.
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Customer Reviews

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Tell us what you think about the Low-Back Ergonomically Designed Knee Office Chair. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

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Average Overall Rating:
(based on 21 reviews)

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Great chair/stool

Carrie from East Hampton, NY– Verified Buyer

Love this stool, is comfortable for someone who has to sit at desk and work long periods of time and also tucks away nicely under desk which is great because my space is limited.

Was this helpful? Yes2 No0

Comfortable and well padded.

Brett from Toledo, OH– Verified Buyer

The chair is sufficiently padded and comfortable, however, the build quality doesn't live up the purpose.

Most people are buying a knee chair to put themselves in better posture when sitting at a desk for long periods. In theory, this chair does that. It opens the hips and helps to align the shoulder over the hips preventing the awful head forward, rounded shoulders seen when sitting at a computer. However, the build quality doesn't live up to the purpose. The weld on the seat bracket is not plum (on mine) so my hips tilt down the right 3 -5 degrees. Those causes my upper body to tower to the right. Can only assume this is going to cause other long term use issues.

Assuming this chair was built correctly I would give it 5 stars in a heartbeat.

Was this helpful? Yes3 No0

Posture Chair

Ace from Chula Vista, CA– Verified Buyer– Top 500 Reviewer

We had this chair in the convent during our evening adoration which prompted me to buy. i wasn't so much aware that there were wheels but it's still good. Helps with the posture and reminds you to sit properly. I like it though sometimes because of the smoothness your behind slips down. Otherwise a great chair if you want to be reminded to have the proper posture while sitting.

Was this helpful? Yes1 No0


T from CO– Verified Buyer

I did receive this office chair and am very happy with it. It is working out really well for me. Its the exact size and quality that I was expecting it would be.

Was this helpful? Yes0 No0

Great chair for the price!

Sharon from Phoenix, AZ– Verified Buyer

Very comfy, rolls easily. Perfect for our space, fits nicely under the small desk.

Was this helpful? Yes1 No0

Encourages good back posture

Case Crenshaw from Chimayo, NM– Verified Buyer

I use this in the office, so it is used for several hours at a time. Other stools would cut off the circulation in my legs. This one is quite comfortable, quality was as good as I was hoping for and it was very easy to assemble and even a couple of extra bolts were thoughtfully included.

Was this helpful? Yes0 No0

Helps my back!!

Cecelia from Lafayette, IN– Verified Buyer

Easy to put together and great for my back. Encourages good posture, too. I use it at home at my writing table where my laptop is.

Was this helpful? Yes0 No0

Great Chair

ruth from hood river, OR– Verified Buyer

Wayfair had the chair I wanted at the best price and shipping was free. It shipped right away and arrived before Christmas. Wayfair rocks!
I have this chair and use it at my office and love it. I sent one to my son for Christmas and he loves his too!

Was this helpful? Yes0 No0

back comfort

Phyllis Cardillo from Mercer, PA– Verified Buyer

This is a very comfortable alternative to flat-seated chairs, especially if you are experiencing back problems. It is easily adjusted and the casters allow for smooth movements back, forward and sideways. The chair is well constructed and very reasonably priced - do not hesitate to purchase.

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Well padded, basic kneeling chair

Corey from Nashville, TN– Verified Buyer

The chair is easy to put together and does adjust in height. However, the shin rest and seat do not adjust independently, so if the distance between them isn't right for your height, you cannot remedy this. I'm 5' 3 and they are a bit too far apart for me. Other than that, it seems study and the padding is very thick - almost like memory foam.

Was this helpful? Yes2 No0
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OUR SKU # OT2902

Low-Back Ergonomically Designed Knee Office Chair is also sometimes listed under the following manufacturer numbers: KCM1425