Office Star Ergonomically Designed Knee Chair with 5 Star Base

by Office Star Products
At other retailer: $162.99
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ITEM# 14265582
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      Included Warranty: Limited Lifetime
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    ITEM#: 14265582

    This Office Star Knee Chair features an ergonomic design and a soft, thick padded memory foam seat. This chair has a durable, heavy-duty nylon five-star base with dual wheel carpet casters for mobility.

    Change up your office seating and strengthen your back muscles with this Office Star ergonomic knee chair. In addition to all the features you expect from a standard desk chair like pneumatic height and tilt adjustments, swivel, and wheels, this chair allows for posture-correcting knee sitting. Deep closed-cell memory foam cushion provides extra comfort whether you use this chair every day, or as an occasional way to relax your tired back.

    • Color: Black
    • Materials: Fabric, foam, plastic, metal
    • Thick padded seat and knee pad with memory foam
    • Pneumatic seat height adjustment
    • Heavy duty nylon base dual wheel carpet casters
    • Weight capacity: 200 pounds
    • Model: KCM1425

    • Dimensions:
    • Seat height: 18.5-23 inches
    • Seat Dimensions: 17 inches wide x 13.75 inches deep x 3.5 inches thick
    • Dimensions (overall): 17 inches wide x 22.25 inches deep x 22.5 inches high


    Style Contemporary
    Material Plastic
    Type Ergonomic Chairs
    Assembly Assembled
    Chair Back Height Low Back
    Color Black
    Condition New
    Product Features Adjustable Height, Armless
    Seat Style Cushion, Upholstered
    Set Includes 1 Piece
    Weight Capacity Up to 200 lbs.
    Dimensions See Details
    Warranty Limited Lifetime
    Model Number KCM1425
    Country of Origin China

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Helpful

    • stool for posture
      Verified Purchase

      Love it! Very comfortable!

      Read More
      Quetta W. Jun 21, 2016
    • Safety Mgr
      Verified Purchase

      Fantastic! Allowed me to continue in my corporate position, all while managing severe lumbar pain before surgery.

      Read More
      Nicole L. Mar 25, 2016
    • Amazing chair
      Verified Purchase

      We bought 2 of these - one for myself and one for my husband. We sit all day at work and this is nice to switch out with a regular chair. I have had several co-workers laugh, then try the chair, then order one! Great price, easy to put together, very stable and extremely comfortable.

      Read More
      pollenpath Mar 3, 2016
    • Soft cushions
      Verified Purchase

      I had the soft "closed-cell" cushions replaced with Confor foam -- much better.

      Read More
      danlj Apr 21, 2015
    • Most Recent

    • Helps with my back
      Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      This chair is great for sitting at the desk for long periods of time. I bought this chair to go in an area where I didn't have a lot of room for an additional large desk chair and it fit perfectly. Easy to put together and arrived on time.

      Read More
      LAURIE P. Oct 31, 2017
    • Good for your back
      Verified Purchase

      I purchased this for a co worker in my office. She hurt her back and needed this type of chair. It was very helpful for her.

      Read More
      karenann4269 Oct 4, 2017
    • active seating!
      Verified Purchase

      my office staff find it very comfortable

      Read More
      rookee11 Apr 21, 2017
    • Comfortable
      Verified Purchase

      It was pretty much easy to assemble, though one part did not match the photo on the instructions. I use it several hours a day at my computer and it keeps me from sitting on my feet. It is easy to roll on carpet. In time I will know if it helps with alignment (I have tilted pelvis that needs adjustment frequently, along with lower disc damage).

      Read More
      lynnak Jan 4, 2017
    • office chair
      Verified Purchase

      Very easy to assemble. The cushions may to be wearing down quickly.

      Read More
      gudrun a. Dec 28, 2016

    Questions & Answers

    • Q:

      "Why did you choose this product?"

      • A:

        I purchased this because I have had a similar one in the past. I suffer from terrible back pain when I sit at the computer for longer than a few minutes. These chairs completely alleviate the back problem.

      • A:

        Trying to prevent back problems.

      • A:

        Because your description was comprehensive, and I vigorously searched for a good value in a knee chair. I weigh nearly 250 lb so that ruled out many that had lower capacities.

      • A:

        Previously used this chair type. Improves lower back and posture.

      • A:

        Recommended by friends for office work

      • A:

        These are the best designed chairs for long-hour computer sitting

      Read more Read less
    • Q:

      "Is this big enough to support a 6'1", 210 lb man comfortably?"

      • A:

        Yes, but seat tilts to the side

    • Q:

      "I just bought this, but was alarmed by the Prop 65 warning. Can someone tell me what it actually means with regard to this chair? Thanks!"

      • A:

        Thank you for contacting us, tbf. This is only in relation to California residents. The Prop 65 warning state that: The Safe Drinking Water and Toxic Enforcement Act of 1986 requires that the Governor revise and republish at least once per year the list of chemicals known to the State to cause cancer or reproductive toxicity. The identification number indicated in the following list is the Chemical Abstracts Service (CAS) Registry Number. No CAS number is given when several substances are presented as a single listing. The date refers to the initial appearance of the chemical on the list. For easy reference, chemicals which are shown underlined are newly added. Chemicals or endpoints shown in strikeout were placed on the Proposition 65 list on the date noted, and have subsequently been removed. Please let us know if you have any further questions.

    • Q:

      "How exactly are to sit on this? Can you send a picture?"

      • A:

        Unfortunately, we do not have any additional images of this product at this time. You sit on the upper portion of the chair with your knees placed on the lower portion and your legs tucked back underneath your body.

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    Shipping & Returns

    Contact Information

    Leaves our warehouse in 1-5 business days. * *

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    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.