- Premium Material: These Ping Pong Balls are made from quality PP material, ensuring durability and longevity. - Fine Workmanship: The balls undergo a grinding process that results in a seamless surface, providing a certain degree of hardness and elasticity. - Product Size: Each Table Tennis Ball measures 40mm/4cm/1.57inch in diameter, the standard size for ping pong balls. - Package Details: Each pack contains 150 pieces of colored ping pong balls. Suitable for kids playing and Shaking swing balls game. - Versatile Use: 40mm Table Tennis Balls are ideal for various applications such as lottery draws, games, water testing, decoration, and amusement park ball spraying machines. Specification: - Material: PP Size Chart: 4cm/1.57inch Package Includes: 150 Table Tennis Balls Note: Please allow slightly errors due to manual measurement and different monitors.