Features 1、Made of high quality material, this product is strong and durable. 2、When the golfer swings, it will issue a prompt voice immediately if your elbow bend. 3、Keeps the left arm at a straight position, to form effective and desirable hitting. 4、Easy to put on and take off, adjustable design fits most people's arm. 5、Suitable for all golfers, especially for beginners/golf tempo trainer. Specification Features: 1. Made of high quality material, this product is strong and durable. 2. When the golfer swings, it will issue a prompt voice immediately if your elbow bend. 3. Keeps the left arm at a straight position, to form effective and desirable hitting. 4. Easy to put on and take off, adjustable design fits most people's arm. 5. Suitable for all golfers, especially for beginners/golf tempo trainer. Specifications: Condition: 100% Brand New Item Type: Golf Straight Arm Trainer Material: Braid Color: Gray White Size: Approx. 18 * 13 * 1cm / 7.1 * 5.1 * 0.4inch Weight: Approx. 48g Package List: 1 * Golf Straight Arm Trainer Package List