Crazy Aaron's MIXED BY ME Collection puts the power of creation in the palm of your hands! These awesome kits include 5 clear tins of Thinking Putty, six bags of color and/or special effect putties, colored pencils, extra labels, and an awesome tin to hold all your components. A dual-sided instructional mat with formula suggestions from Crazy Aaron himself is also included. For lovers of slime and putty alike - great scientific project or rainy day fun activity set. Make your own scented birthday putties as giveaways. Thinking Putty is manufactured with the help of exceptional individuals challenged with disabilities. Made in the USA from nontoxic silicone and never dries out!