Product name: Self study Badminton Trainer Product size: 8*4cm/3.15*1.6in Product color: As shown in the figure Product material: Plastic, silicone, nylon Product features: 1. Adjustable height: Our single badminton training machine has adjustable height function, suitable for adults and children. The machine's exceptional flexibility provides a realistic and efficient training experience that mimics playing with a partner. 2. Space saving: The machine has a compact design and is easy to store, making it very suitable for use in small indoor spaces. 3. Easy to use: It can be pasted on the wall and ceiling, and just pull down the badminton ball when using it. 4. This innovative training tool is specially designed for single badminton players to improve their technical and physical fitness levels. The device provides resistance during training to help players increase strength and power to practice and develop their strokes and Smashing ability. This training tool serves as a fitness companion, using repetitive movements to engage multiple muscle groups and build cardiovascular endurance. 5. Practical: The machine has excellent flexibility and provides a realistic and efficient training experience that simulates playing with a partner. The machine has a compact design and is easy to store, making it ideal for use in small indoor spaces. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact me we will give you some suggestion, but it is for you reference only. Shipment includes: 1 set Self study Badminton Trainer(Training device*1 ball*3 tape*2 rope*1)