Chair made of , and practical. Metal material, and practical. Easy to use, not easy to wear, not afraid of humid environment. 180 degree multi-angle can be adjusted, you can choose the angle according to your needs. They are nice for you friends who like playing games, they will like them. Features -Color:Black -Material:Metal -Size:28.50X24.00X4.00cm/11.20X9.43X1.57in -Note:The product is just a chair , without a chair. -Adjustable design, very flexible, suitable for anyone's body shape and habits, allowing you to enjoy more comfortable seat experience -Using high -strength materials, reasonable design, strong stability, can maintain a stable state for a long time, so that you have no worry -Simple and convenient installation, no need for too much tools and operations, does not affect your daily use -Design considering user needs in an all -round way, adding comfort adjustment, helping you reduce lumbar muscle strain and low back pain, making your life more comfortable and healthy -High -intensity materials and excellent craftsmanship can be used for a long time without damage. It is your to improve the service life and . Package list: 1 angle adjuster