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 triangular saddle seat lowers the thighs, opens up the hips and positions the spine into a healthy curve. 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-1421-GG Color Black Finish Black Powder Coat Made of Foam, Metal, Plastic, Vinyl Ergonomic Design Black Saddle Seat Vinyl Padded Knee Rest Knee Rest Pads 19.25''W x 10.5''D x 2.25'' Thick Height Adjustable Frame Black Powder Coated Steel Frame Dual Wheel Casters CA117 Fire Retardant Foam Made In Taiwan TAA Compliant Capacity 250 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 19.25 W x 27.25 D x 21 28 H Seat Dimensions 16 W x 13 D Seat Height 20 24.50 H