Teenage Mutant Ninja Turtles Make Your Own Turtle Ooze Kit Bundle by Nickelodeon Real Science With Cool Ooze, All You Need Is Imagination! Over 20+ Pieces in Kit Learn the Science Of Hydrated Crystals, Cross-Linked Polymers, Ion Diffusion + Gels A Mutant Feast Fit For A Turtle King. For Ages 12 Years +