The moisture meter can quickly measure the moisture content of the grain. 1. Improved training skills: With volleyball spike training equipment, you can easily improve your incredible arm speed and punching power, without having to chase the ball and without the need for the help of another person. 2. Sturdy and practical: The volleyball spike trainer has a Velcro closure that securely holds the ball in place, can be tied to the post and can be adjusted to your desired length and height. 3. Durable Material: The volleyball training equipment is made of lightweight and durable neoprene, without worrying about breakage during exercise, it is easy to carry. 4. Various scenes: volleyball training aid is suitable for indoor and beach volleyball, can even fit basketball, football, is practical and useful. 5. Easy to use: Due to the flexibility of the spiked training system, the volleyball will vibrate back and forth when punching, you can hold the ball before punching it, you can hold it securely in place. . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT Specification: Item Type: Volleyball Training Belt Material: neoprene Usage: Improving volleyball training and jumping training. . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT List of packages: 2 x elastic rope 2 x volleyball cover . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT . ADJUSTABLE VOLLEYBALL TRAINER TRAINING BELT