Perch Shell Chair in Chrome mws_apo_generated Base: Durable 5-leg 21" diameter

Base: Durable 5-leg 21" diameter fiberglass reinforced nylon base

It has a one-touch seat height adjustment lever and a durable 5-leg 24" diameter fiberglass reinforced nylon base

6-way Ergonomic adjustable arms adjust arm height: up & down

Height (3 Options): Desk Height 17-27"

Perch Shell Chair in Chrome mws_apo_generated Base: Durable 5-leg 21" diameterPerch Shell Chairs provide a comfortable seating angle and an ideal degree of flexibility that follows the contours of the body and responds to its movements. View Casters Caps: 2 Choices Chrome Dual wheel, Self breaking, Non marring Casters (standard), Stationary Caps (glides). Specs Colors Available: Black, Gray, and Blue. Seat: Ergonomically contoured waterfall seat for improved circulation. 16" x 16" x 1". Back: Back rest 15. 5" w x 16" h.