Material: ABS plastic Color: red + blue Package Includes: 8 shape track which can be combined into an infinite loop & 2 rubber balls Recommended for kids above 3 years old. How to play this Infinite Loop Track?; 1. Hold both hands of with your hands.; 2. Practice opening and closing movement making transforming the 88 loop. When you are familiar act roll ball on track Keep when continuously loop. Balancing game, Eyes brain: during eyes need keep eye ball, while brain controls respond in time exercise coordination hands, brain. Accessories: elder used joints muscles, is a regardless age sensory toys. Environmentally friendly material formed once, safe environmentally friendly, non-toxic tasteless. It contains one two balls.