A mini scientific laboratory for sports lovers who can create fantastic bouncy balls shaped like footballs, basketballs, tennis balls and much more with their own hands! This kit contains coloured powders and everything the child needs to create balls that really bounce for hours of riotous fun. The manual, which explains all the phases of the experiments, guides children step by step, using simple language that they can relate to. The balls are safe and completely non-toxic so children can have fun in total safety.