The Stella Task Chair is built for full days at a desk. The synchro-tilt mechanism reclines the seat and back together, locks in three positions, and has adjustable recline tension. The armrests adjust on four axes, including height, and the padded caps slide and pivot to keep your forearms supported while you type. Seat height runs from 17.5" to 20.5". The contoured foam seat and backrest are upholstered in black CareSoft faux leather on a hand-polished cast aluminum base with dual-wheel casters. For conference rooms, the Stella Executive Chair has the same seat dimensions with fixed polished aluminum arms.