Domestic plyo ball baseball training balls with excellent durability, planned and developed by qualified personnel in collaboration with domestic factories [4-ball set, for junior high school students]

✅ [Improve pitching performance] The perfect training item to improve pitching speed, control, and prevent injury! ✅ [Domestic production] We achieved low cost and high quality with safe domestic production! ✅【Excellent Durability】The durable design is designed to withstand repeated impact and is highly durable! ✅ [Precautions for use] When using this product, please be sure to use it under the supervision of an expert or instructor. ✅The quality is sold out at some distributors and is available at an affordable price! ✅Made at a domestic factory under the supervision of a certified Driveline trainer!

✅ [Improve pitching performance] The perfect training item to improve pitching speed, control, and prevent injury! ✅ [Domestic production] We achieved low cost and high quality with safe domestic production! ✅【Excellent Durability】The durable design is designed to withstand repeated impact and is highly durable! ✅ [Precautions for use] When using this product, please be sure to use it under the supervision of an expert or instructor. ✅The quality is sold out at some distributors and is available at an affordable price! ✅Made at a domestic factory under the supervision of a certified Driveline trainer!


Type: ‎Baseball
Package size: ‎16.3 x 15.6 x 7.4 cm; 930 g
Suitable for: ‎Unisex, Uni Rate