1.Bouncing balls set: includes 20 pieces bouncing balls, diameter 3.2 cm. Designed with different colours, random colour package. 2.Quality material: these balls are made of highquality hard rubber, lightweight and durable, nontoxic and odourless. They longlasting fun both indoors and outdoors. They are bouncy and beautiful in appearance. 3.Features: These children's bouncing balls are environmentally friendly, good quality, lightweight, brightly coloured, flexible and strong. 4.Versatile: the bouncy balls are suitable for many different occasions, e.g. as party and Christmas gifts, lucky charms, prize games, school gifts, back to school, gifts for school and so on, which are the choice for children.