Backrest backrest: The comfortable seat cushion 1 piece The “Backrest” supports the lumbar spine and ensures improved and healthy posture. Thanks to the elastic band, it is simply pulled over the backrest of your seat and ensures a comfortable sitting experience in no time. The mesh construction is breathable and thus prevents annoying sweating in the lower back area. The integrated knobs provide a special massage effect. The "Backrest" is as light as a feather and easy to handle. Material: Mesh fabric: 100% nylon Frame: Carbon Steel Massage nubs: 100% polypropylene Size: approx. 40 x 39 cm Weight: 230 g per piece