Reduce the pressure from long term sitting and choose an ergonomic kneeling chair that is both comfortable and healthy for your body. Kneeling chairs sit you in a position to allow your diaphragm to move efficiently and promote better breathing and blood circulation. The frame is height adjustable to get into your preferred seat height. This chair can be used as a permanent office chair or used in conjunction with a conventional task or executive office chair. WL-1420-GG Color Black Made of Fabric, Foam, Metal, Plastic Ergonomic Design Black Fabric Upholstery Padded Seat and Knee Rest Knee Rest Pads 18.5''W x 10.5''D x 2.25'' Thick Height Adjustable Frame Black Powder Coated Steel Frame Dual Wheel Casters CA117 Fire Retardant Foam Capacity 200 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 19 W x 28 D x 20 27 H Seat Dimensions 17 W x 13 D Seat Height 21 26 H