Adjustable Smart Golf Swing Posture Correction Impact Ball Training Teaching Aid Product Features: Value of Sets: Popular in Europe and the United States, used to correct the swing posture.It can improve the swing performance of the  beginners and golf enthusiasts within a short period. It is also a necessary swing auxiliary training artifact for professional coach teaching. Adjustable Design: This inflatable smart ball is connected to an adjustable rope to satisfy anyone's needs. Inflatable balls can adjust the size on their own.The neck rope can be adjusted, suitable for different height golf enthusiasts. Easy to Carry: Lightweight and portable. You can clean it quickly and put it into a cupboard. It does not occupy a lot of space and can be kept well. High-Quality Material: Environmentally friendly flocking PVC, durable and comfortable, wear resistance,convenient storage, those allow you to use it for a long time. Perfect Gift: Great for beginners to practice and for professional to teach and improve swing performance. It can be a excellent gift to the golf players. Product Specification: Type: Swing Trainer Ball Material: Flocking PVC Color: Black Sport/Activity: Golf Package Included: 1 x Golf Swing Trainer 1 x Inflatable Pump