Sport-Thieme Bonkerball ball set: Fun for children - The Sport-Thieme Bonkerball ball set consists of 6 balls in different colours. The balls have good flight characteristics and are easy to hit thanks to their 9 cm diameter. The reduced bounce ensures that the balls stay on the ground. Each ball in the set is made of foam, which ensures long-lasting fun and makes the balls particularly soft. - Product details: - Material: compressed foam (sponge rubber) - Diameter: approx. 9 cm - Weight: approx. 40 g.