Go about your day with confidence and comfort. The Assert Office Chair comes with a sturdy nylon base and sleek ergonomic design, and features a breathable mesh back, passive lumbar support, padded mesh seat, and padded armrests that easily rotate up and out of the way. Complete with 360� swivel, a sturdy gas cylinder, one-touch height adjustment, five dual-wheel casters, and tilt tension control, Assert is a versatile modern task chair. Chair Weight Capacity: 331 lbs.Set Includes:One - Assert Office ChairSleek Modern Office ChairNylon Frame and BaseBreathable Mesh Back and SeatFlip-Up Padded ArmrestsFive Dual-Wheel CastersTilt and Lock MechanismChair Weight Capacity: 331 lbs.Overall Product Dimensions: 25.5"L x 26.5"W x 43.5"HSeat Dimensions: 26.5"W x 22.5"HArmrest Dimension: 10"L x 29.5"HBackrest Dimensions: 19"W x 43.5"HArmrest Height from Seat: 7"HBase Dimensions: 25.5"L x 25.5"WProduct Material: 320mm black nylon base, Wood plate with 30kg/m3 density foam, 100% polyester mesh, Nylon caster, Rotatable PP armrest (90 degree).Powder coating chassis in black,100mm black powder painting gaslift, PP dirt-proof boot in 3 parts, Chair Weight Capacity 150