COLAMY AETHER Ergonomic Middle Back Mesh Office Chair

Material & Build: Armrest: Plastic + PU Backrest: Painted plastic crossbar + thick cushioned lumbar support Seat cushion + mechanism: Foam + plastic mesh basket Base / Casters: Plastic Adjustability: Backrest Tilt Lock: 105°-110°-118°-120° Adjustable Lumbar Support 4D Adjustable Armrests Seat Depth Adjustment: 2.4 in (6 cm) Seat Height Adjustment: 4.6 in (11.8 cm)