Usage Tips: Reactive Catching:Unique design of three handles, rounded ends and center for more ergonomic catching and throwing; toss in the air and call out a color to catch it. Exercise quickly response capability. Improve Reaction:Catch trainer can improve reaction time, agility , hand-eye coordination ability and quick decision-making ability. Athletes of all skill levels can use it to be ready for almost any sport. Material:The size of this reactive training bar is 20 * 20 * 4 cm, weighs about 70 g. Crafted from a proprietary blend of EVA foam with a textured grip. Safe and environmentally friendly. The foam is soft enough to avoid injury. VARIABLE DIFFICULTY: Make the game as difficult or easy as you need and work your way up with training. Add more spin, change your call out timing, increase speed, use color + hand combinations, or change throw orientation, etc Start with a difficulty that is right for you. KIDS LOVE: Our innovative soft foam design allows it to be safely used with young children to play at the park, in a pool, or just at home. Enjoy limitless outdoor fun with simple games while improving your childs cognitive processing, focus, and coordination.