1. Volleyball exercise belt with flexible fit and adjustable design: This volleyball spiking trainer has a frame that can hold volleyballs of any size, along with an adjustable belt and waist strap, providing a suitable training experience. 2. Durable and flexible volleyball training belt: Our volleyball spiking trainer is made of quality diving materials and nylon, ensuring longlasting durability. With an adjustable length ranging from approximately 211 to 350 cm, it is suitable for different heights and skill levels. 3. Hitting Technique Spiking Trainer System: This volleyball spiking trainer helps improve your striking technique and form by stabilizing the ball during swing practice. Ideal for camps or training sessions, it helps develop precision as a spiker. 4. IMPROVE BOUNCE SKILL, SPIKING TRAINING, JUMPING, AND WICKED FAST ARM SPEED: Our volleyball spiking trainer is suitable for both solo and team drills, enhancing spiking skills and boosting vertical jumps. It is also an training tool for beginners learning the fundamentals of the game.