The Corona Low Back Fabric Office Chair offers comfort, support and an array of features perfect for a 24/7 multi-shift office environment. The back has a ventilated black mesh material. It supports up to 300 lbs., has an adjustable depth seat, 2-to-1 locking synchro-tilt adjustment, plus dual wheel casters. This modern office chair is all your workplace or home office needs for all-day comfort. Other features include a chromed metal base, CA117 fire retardant foam, height adjustable and inward/outward pivoting arms, adjustable height lumbar support and a triple paddle control mechanism. An ergonomic waterfall seat promotes healthy blood flow.