This STARSPACE BTX-1903 Ergonomic High Back Mesh Office Chair features Nanoscale materials helping resist transformation with high-density shaping foam and abrasion to keep you comfortable during long, intense sessions. Perfectly supporting your weight, size, and even temperature, it will help you feel more comfortable in jobs that require extended sitting. Color: Black. Features: All-day Comfort; Foldable Design; Easy to Assemble; Rocking Back and Forth; Adjustable Lumbar Support; Adjustable Tilt Tension Knob; Solid and Smooth Rolling Casters. Materials: Mesh, High-density foam seat. Dimensions: 24.2"W x 28.4"D x 45.5"-48.6"H. Weight Capacity: no more than 250 lbs.