Homy Casa Desk Chair Adjustable Swivel Office Chair Fabric Seat Ergonomic Task Chair without Armrest, GrayProduct built to last with sturdy material: polypropylene (PP) plastic structure, mesh fabric covering, metal base. The back of our chair is breathable and at the same time protects the spine, helps correct the sitting posture and offers maximum comfort. The base is well strengthened, no worry about sudden falling. Practical use thanks to adjustable height by gas lift and swivel castors for easy movement. 360 degree rotation allows you to move freely.