Ergonomic chair by Global, as seen https://www.staples.ca/products/511304-en-global-kneeling-chair-graphite-grey Reduces strains on the body, including back and neck pain Naturally assures correct sitting position Padded seat and knee support Manual seat-height adjustment Strong steel frame Made in Canada Dimensions: 21'' -  25"(H) x 18 1/2"(W) x 25 1/5"(D) 18 lb. 250 lb. capacity Excellent condition, like new Asking $100 or best offer