Crafted of high-grade earth-friendly plastic to ensure sturdy enough to sit flat on any flat surface and withstand the knocks. Bowling balls have indented circles to resemble a real bowling ball. Get ready to roll, and catch. Children make gains in concentration, hand eye coordination, sensory awareness and visual tracking as kid's eyes follow the path of the moving ball. Features: Interactive Toy, Family Game Prop, Safe to Play Specification: Type: Bowling Toy Material: Plastic Pin Height: 16/22cm / 6.3/8.66inch Ball Dia.: 7/10cm / 2.76/3.94inch Package Includes: 10x Bowling Pins 2x Bowling Balls Note: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.