1There is a filled sponge ball on the palm of the wristband to support and massage the palm of the hand. You can move the finger joints while your hand is fixed. 2The inner side of the wrist brace is designed with aluminum strips, and the wavy design fits the wrist shape, which can better support and fix the wrist. 3The outer layer has a cushioning sponge, which can provide hand protection, will not let the aluminum strip poke, soft and comfortable. 4The back of the hand is made of elastic mesh, which is comfortable and breathable. 5Doublehole design, regardless of left and right hands, can be adapted to adult arms. 6The wavy aluminum palm rest can provide support for wrist sprains, muscle strains, ligament instability, wrist weakness or back bending, and carpal tunnel syndrome.