Features:- Through the use of product to improve a beginner and professional teaching necessary swing auxiliary training artifact.- It is a good training tool for golf enthusiasts to improve your swing through repeated training of intelligent ball practitioners for a short time.- Scientific and reasonable design and construction, easy to carry, easy to use, inflatable balls can adjust the size of their own, neck rope can adjust the length, suitable for different height golf enthusiasts.- The smart ball will help you understand how the arm and body work during the effective golf swing. This inflatable smart ball is connected to an adjustable rope to satisfy anyone's needs.- Using this golf intelligent inflatable ball 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.Specifications:- Material: PVC- Size: 19*19*19cm- Weight: 90.7gPackage content:- 1 x Golf Training BallNotes:1. Manual measuring, please allow 1 ~ 3mm error, thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.