Desk height chair and backrest angle, black vinyl, seat 20.5in wide set to 18in depth, backrest 17.5in w x 15in h w/ 3in adjustment range, 23in dia tubular steel base w/affixed 21in dia, seat height 17.5-21.5in; I
Medium bench height chair w/ task control to regulate seat height and backrest angle, black vinyl, seat 20.5in wide set to 18in depth, backrest 17.5in w x 15in h w/ 3in adj range, 23in dia tubular seat height 20.5
High bench height chair and backrest angle, black vinyl, seat 20.5in wide set to 18in depth, backrest 17.5in w x 15in h w/ 3in adj range, no arms, 23in dia tubular dual-wheel casters; seat height 24.5-31.5in; ISO
Desk height chair and backrest angle, black vinyl, seat 20.5in wide set to 18in depth, backrest 17.5in w x 15in h w/ 3in adjustment range, no arms, 23in dia tubular dual-wheel casters; seat height 17.5-21.5in; ISO