Offering easy playability and reliable consistency, the Vollint 1-star table tennis balls are a great choice for beginners and recreational players. Manufactured from ABS (acrylonitrile butadiene styrene) plastic, the balls provide a combination of added durability, optimal hardness, and improved roundness. Suitable for schools and youth clubs, the balls have a diameter of 40mm and deliver a good bounce and responsiveness for hobby and practice play. These 1-star, official size ping pong balls are supplied in a practical container for easy storage and transportation. They come in a pack of 36 balls.