Features Color Black Diameter 357cm Package weight 32gpiece Delivery content 1 slider training equipment Use With the sound of our golf training aid, golfers can detect incorrect bending in the left arm to keep the left arm in a straight position Therefore, an effective and desired stroke can be gradually formed Suitable for all golfers or for taking golf lessons, especially beginners Sound prompt for incorrect posture The golf elbow trainer is an integrated alarm device made of special material that immediately generates a ticking sound when you bend your elbow during the swing. It warns you if you have a bad posture. You should adjust your posture and keep your left arm straight. Adjustable and easy to wear. Strong Velcro and buckle make the golf training aid adjustable, easier to put on and take off. The thick plastic buckle does not scratch the skin like other thin metal buckles. It fits most peoples arms, elbow circumference up to 33 cm. Not easy to move and warns better. Compared with other suppliers who have a simple belt, our golf trainer fits around the entire elbow, ours is not easy to move and it can warn golfers better. Breathable material Our golf training aid is made of highquality, breathable nylon fabric.bandVelcro closure, is durable and lightweight It will not put you under pressure