30-piece set of hollow balls for batting practice in baseball and softball Recommended for batting practice, toss batting, tee batting, and practicing breaking balls! Made of lightweight and durable PE material (plastic), so it doesn't hurt when hit, reducing the risk of injury. Safe for use in youth baseball, both outdoors and indoors! The hollow structure prevents the ball from flying too far, making it perfect for practice in confined spaces. Bright green color makes it easy to see even at night! Also recommended for softball, tennis, and golf practice balls, and for playing with balls. 【 Features 】 ① Lightweight and durable PE material! A large set of 30 pieces! ② Small balls help you practice hitting the sweet spot of the bat and improve dynamic vision. ③ The color is fluorescent green, making it easy to see at night or in poor visibility. 【 Product Details 】 Size: Approximately 42mm Color: Green Weight: Approximately 6 grams Quantity: Set of 30 ★ Thank you very much for viewing! Follow and buy in bulk for even more savings! Follow Discount ▶︎ 50 yen off Bulk Purchase Discount ▶︎ Available from 100 yen off ※ Limited to a total of 1,200 yen or more. ※ May not be possible if items cannot be shipped together. 【 Notes 】↓ Please understand. ・ The color of the actual product may differ from the photos depending on the lighting in the room and the environment of your monitor. ・ Although we check, there may be inconspicuous stains or small burrs.