＼Super Popular! Improve Reflexes & Explosive Power／ This is a set of 3 Reaction Balls with different difficulty levels. 【Features】 Bounces irregularly, making it ideal for training reflexes, dynamic visual acuity, explosive power, and agility! Can be used for basic training in all sports such as baseball, soccer, tennis, and basketball. A recommended item for those who want to improve their sports performance. Children and adults can train while having fun playing. Effective for daily exercise and improving concentration by training hand-eye coordination. Take your performance to the next level with this training tool! Also recommended for rehabilitation and improving concentration! We also sell other sports equipment! Check it out here↓ #SportsAccessoriesShop 【Product Details】 Set Contents: 1 each of Blue, Red, Yellow (3 total) Size: Approx. 5.5cm Material: High-quality rubber / synthetic resin Condition: New and unused