Adjustable and Flexible The volleyball spike trainer fits players of any size. The frame is suitable for volleyballs of different sizes, and the belt and waist are adjustable through the bag to ensure a secure fit during use. Flexible and Durable Made of diving materials and quality nylon, the trainer is flexible yet durable for repeated practice. The overall length is adjustable from approximately 211 cm to 350 cm, allowing adaptation to various training setups and player heights. Spiking Ability The trainer holds the volleyball in place during your swing, helping you develop proper spiking technique and form. It is a practical tool for camps, clinics, and regular training sites to improve your spike accuracy and power. Improve Jumping Ability Suitable for both individual and team exercises, the trainer supports jump practice and can help increase vertical jump. It is also a useful training aid for beginners who are learning the basics of the game. Use scenarios Solo practice at home or in a gym: set up the trainer to practice timing, swing path, and spike acceleration with varying distances and heights. Team drills during practice: use for coordinated spike timing, approach steps, and ball contact consistency within drills. Camp, clinic, or travel training: portable solution to maintain spike and jump work when court access is limited or during onsite sessions.