Martin Comfort Mesh Executive Drafting-Height Chair, Black Fabric, 1 Each (91-02406115) Extra-wide, molded foam seat (18" W x 15.5") is covered in Everlast fabric for the ultimate in comfort and durability Easily customized to the user with adjustment mechanisms for height, armrests, backrest and lumbar support with backrest dimensions of 19.5" W x 19.5" H Height from floor to seat: 25-35 inches Features a 15 chrome clad foot ring that will also adjust easily to the users stature for additional comfort 26 diameter five-star safety base provides the ultimate in stability with double-hooded, multi-surface castors