- 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: PPSize Chart:4cm/1.57inchPackage Includes:150 Table Tennis BallsNote:Please allow slightly errors due to manual measurement and different monitors.