This PVC smart ball is perfect for golf enthusiasts and learners, with an adjustable rope and posture correction function. It can improve swing performances in a short time, is easy to carry and clean, and suitable for golfers of different heights. The package includes one golf wisdom ball swing trainer. Features 1. This inflatable smart ball is connected with an adjustable rope, which can meet the needs of anyone. The inflatable ball can be adjusted to its own size, and the neck strap can be adjusted in length, suitable for golfers of different heights. 2. With inflatable auxiliary posture correction function, it can be used for a long time. For golf enthusiasts and learners, this is a good training tool that can improve swing performances by repeatedly training smart ball practitioners in a short period of time. 3. It is easy to carry and can be cleaned quickly, it does not take up too much space and can be kept very well. Specifications: Product Name: Golf Wisdom Ball Swing Trainer Material: PVC Quantity: 1 Pc Color: Black Package Included: 1xGolf Wisdom Ball Swing Trainer