Features: Compared with other ordinary office chairs, the cushion of this office chair uses high-density elastic sponge, which is softer, thicker, and more comfortable. It ensures seat stability and durability, doubling your comfort in daily use. The overall ergonomic design provides highly contoured support where you need it most. The chair effectively relieves back pain caused by long hours of sitting. Includes screws, tools, and manual needed for installation; no extra tools required. Assembly is easy to follow for a comfortable study or work chair. Adjustable height with an easy-to-use lever and pneumatic system. Smooth rolling casters and 360° horizontal rotation allow quiet, floor-safe movement. Perfect for studying in dorms or working at home offices. Suitable for home offices, dorm rooms, student desks, or as an accent chair. Specifications: 360° Swivel — allows rolling, pivoting, and multitasking. Height Adjustable — lever under the seat lets you adjust height easily. 360° Swivel Casters — durable casters for smooth mobility. High Resilience Cushion — thick padded seat cushion for all-day comfort and non-deformation. Size: As shown in the picture Weight Capacity: 200 kg