Features a backrest with lumbar support and a firm cushioned seat 5 caster wheels that roll in any direction Thick cushioned seat Made with a durable stainless steel base, polypropylene frame and a mesh-covered back Dimensions: 22.44-in D x 20.4-in W x 34.52-in to 37.91-in H Knob under the seat to easily adjust the height of the chair Supports up to 200-lb Easy assembly Mind Reader Black Traditional Ergonomic Adjustable Height Swivel Desk Chair
