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Part #: KCM1425
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Office Star Low-Back Ergonomically Designed Knee Office Chair


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List Price:  $114.99

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Arrives for Christmas to Seattle, WA 02108 (Change)


Product Details
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  • 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
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  • Maximum Overall Height - Top to Bottom: 22.5 Inches
  • Minimum Overall Height - Top to Bottom: 19 Inches
  • Overall Width - Side to Side: 17 Inches
  • Overall Depth - Front to Back: 22.25 Inches
  • Overall Product Weight: 35 Pounds

Additional Documents


Weights & Dimensions

  • Seat thickness: 3.25"
  • Knee pad: 16.5'' W x 12.5'' D x 3.25''T
  • Maximum Overall Height - Top to Bottom: 22.5 Inches
  • Minimum Overall Height - Top to Bottom: 19 Inches
  • Overall Width - Side to Side: 17 Inches
  • Overall Depth - Front to Back: 22.25 Inches
  • Seat Width: 17 Inches
  • Seat Depth: 12.75 Inches
  • Overall Product Weight: 35 Pounds


Product Type: Kneeling chairsAssembly Required: Yes
Style: ContemporaryBase Finish: Black
Base Material: MetalExterior Seat Material: Fabric
Back Height: Low-backAdjustable Height: Yes
Ergonomic: YesCasters: Yes
Country of Manufacture: China 

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

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

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When you buy a Office Star Low-Back Ergonomically Designed Knee Office Chair online from Wayfair, 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 home, Wayfair has a zillion things home.

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Return Policy

We want you to love it. If you don't, you may return your purchase within 30 days of delivery. All you need to do is visit our Self-Service Return Center for instructions. Return credits are issued within 24 hours once the item is received and inspected. Please note that shipping charges are non-refundable. The cost of return shipping will be deducted from your refund.

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Customer Reviews

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Average Overall Rating:
(based on 17 reviews)

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only OK

 from morristown, NJ– Verified Buyer

it's only OK. cushion very thick, nice; BUT chair itself needs more "adjustability." not being able to adjust the knee rest up/down is a real negative feature. Many people said this, but I bought it anyway....will make do, I guess.

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 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.

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Comfortable and well padded.

 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.

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1 out of 1 people found this review helpful

Posture Chair

 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.

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Helps my back!!

 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.

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Well padded, basic kneeling chair

 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.

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1 out of 1 people found this review helpful

Encourages good back posture

 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.

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Great Product

 from Hendersonville, TN– Verified Buyer

I ended up purchasing two of them. They are very comfortable, and hide away under the desk easily. Good cushions, still look like new after a year.

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back comfort

 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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Love it

 from Denver, NC– Verified Buyer

Second one I bought.

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OUR SKU # OT2902

This item is also sometimes listed under the following manufacturer numbers: KCM1425