Helix Tennis Ball with Elastic Cord STB-10
The Helix Elastic Cord Tennis Ball STB-10 is ideal for training in confined spaces or alone.
Helix Elastic Cord Tennis Ball STB-10: Practical Single-Person Training
The Helix Cord Tennis Ball STB-10 is a practical and effective training equipment designed for single-person tennis stroke and coordination training.
Main Features
Ball Specifications:
Ball weight 58 grams ($pm$ 2 grams) It weighs.
The diameter of the ball is 60-65 millimeters.
Elastic Cord: The length of the elastic cord attached to the ball is 350 centimeters.
Rope Thickness: The thickness of the elastic cord is 2 millimeters, which contributes to the pull and return speed of the ball.
Purpose of Use: Thanks to the ball's rapid return after hitting, it allows players to constantly repeat their serve, forehand and backhand strokes and improve their coordination.

