THE PHILADELPHIA GROUP-Amazing Science Kits: Ball Lab. Create your own colored super bounce balls! This kit has everything you need to make two super-high bounce balls. This package contains one plastic ball mold, four assorted colors of bounce powder, and one instruction sheet. Recommended for ages 8 and up. WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 years. This set contains chemical that may be harmful if misused. Adult supervision required. Imported.