Value PackageComing with 1 Uninflated Golf Training Ball + 1 adjustable rope to satisfy anyone's needs. Inflatable balls can adjust the size of their own,suitable for different height golf enthusiasts.Upgraded MaterialThis Golf Swing Trainer Ball is made of environmentally friendly flocking PVC.it doesnt need to be fully inflated, enough air to cushion it in between the arms is more than enough, Improve the use of a beginner and professional coach teaching necessary swing auxiliary training artifact.Fantastic training aidWith the golf smart ball hanging on the neck, you can use it for say five swings and then use without. It made you use your hands more effectively in the last 1/3 rd of downswing.Effect remarkableWith only a few practices, strengthen the arm muscle memory and your body will automatically responds with the correct swing positions on the golf course.MultifunctionUsing this golf intelligent inflatable SwingTrainer practitioner can correctly grasp the swing posture, fix and strengthen the arm distance muscle memory, avoid arm bending, synchronize your body and arm, effectively improve the swing skills so as to master the correct swing posture, find the right hitting point.