Description: Have you been vexed with golfs. Maybe you need some help about correcting your elbow movement. This item is designed for golfs beginners that can't swing in a proper way, if you do it in a worry way, the alarm would make sounds to remind you to keep your elbow straight while your swinging. It also helps to increase the power of your swing by forcing you swing with a wide arc of arm swing without bent elbow movement. This trainer is made of nylon, lightweight, adding no burden to golfs practicing. Get one and start your new journey of golfing. Features: 1. Made of quality nylon, lightweight. 2. Helps remind you to keep your elbow straight. 3. The alarm makes sounds when you bend the elbow. 4. Strengthens the power of your swing. 5. Suitable for golfs beginners. Specifications: Material: Nylon Color: Black Length: approx 17 cm / 6.69'' Width: approx 11.5 cm / 4.52'' Suitable arm circumference range: 20-30cm/7.87-11.81in Weight: approx 60g Package Includes: 1 * Golfs Swing Trainer Only