Description: 【Convenient Home Use】: This badminton training device allows you to play badminton at home without the need to pick up the ball. It's perfect for a fun and enjoyable workout at home. 【How to Use】First, the sticky sticker can be glued to the upper door frame, then hang the ball; this badminton trainer is very easy to install. Press the button, and the ball can automatically be rebounded. 【Easy Installation】: The badminton self practice trainer comes with traceless adhesive sticker, just press it firmly without damaging your walls. It can be installed anywhere, making it versatile and convenient. 【Durable Material】: Made of nylon plastic, this badminton trainer is designed to withstand play. It's not easily damaged and has strong power, making it ideal for improving your power and technique. 【Perfect Gift】This suspended badminton trainer provides endless hours of fun. Perfect as a present, a great gift it is, and something your child would definitely enjoy. Specification: Material: Plastic Nylon Size Chart: Host Size: 8.5cmx8.5cm/3.35inchx3.35inch Rope: 1.4m/55.12inch Package Includes: 1 Retractable Host 1 Badminton Ball with String 2 Badminton Balls 2 Adhesive Sticker 1 Rope Note: Please allow slightly errors due to manual measurement and different monitors.