Our boxing balls is suitable for any group of people, no matter the elderly, young people or children. The Punching fight ball helps to develop our attention concentration, quick response and exact action. It can not only build our body, but also improve our state of working and learning. Soft & Safe Made from superior quality, ultra-durable non-toxic materials which can withstand the test of time, with an ergonomic and practical grip and 4 difficulty levels, which is safe for kids and adults! Great for Training The boxing fight ball helps to develop our attention concentration, quick response and exact action. It can not only build our body, but improve our state of working and learning. The rebounding ball is also the best way to improve kids' attention concentration. Easy to carry to anywhere With a carry bag included you can work out anywhere you like! At home, beach, office or school, just strap the head band on and have fun What you Get 1 x Black PU ball with 1 MM elastic cord, 20g (NEWBIE) 1 x Light red rubber ball with 1.8 MM elastic cord, 80g (BEAST MODE) 1 x Elasticity Headband 1 x Carry bag 2 x Replacement elastic string Notice New learner should slow down punching speed to avoid the ball rebounding to your face when hitting. Once the rebound has the trend to your face, grab the rope can change the direction of the ball. When you are training, attention should be focused. look out the rebound to avoid injuries.