Specifications: Color: Black Diameter: 35*7cm Package weight: 32g/piece Scope of delivery: 1x Sliders training equipment Package content: The package contains 1 piece of golf arm band trainer, the color is black, the size is 35*7cm. How it works: The comfortable tool keeps your arms close to your body for the best possible swing. Keep your arms and body in sync. Premium material: The Golf Swing Arm Band is made of high-quality elastic plant fabric, which is elastic, stretchable, not easy to deform and can be used repeatedly. Fits most people's arms. Improve swing position: Using appropriate arm training bands to assist with training can help improve the golf swing position. Your muscles can retain training memory. In the next training session, you can use muscle memory to swing more skillfully and make your posture more perfect. Correct the angle of arm strength: Practical armband can help you maintain the correct angle of your arms and body, making the swing smoother.