Our Atomica boiler of 18 tennis balls, model #00130. These balls are made of durable felt and will allow you to play on all surfaces. They’re high quality balls with a 100 centimeter bounce. This boiler contains 18 tennis balls. You will benefit from a solid, durable and quality design for long rallies during your games. These tennis balls are suitable for all ages. Thanks to its economical format, you will enjoy quality balls at a lower price. They will offer you optimal rebound and increased visibility during your games.