BOP1377 Features: * Chair * Nylon base * Passive ergonomic seating with built in lumber support * Upright locking position * Pneumatic seat and height adjustment * Adjustable tilt-tension control * Hooded with double wheel casters * Large base for greater stability Options: * Upholstered in black LeatherPlus Dimensions: * Overall dimensions: 44" H x 27" W x 27" D Warranty: * Manufacturer provides 6 years limited warranty