Thinking Putty is a high-quality, silicone-based putty that is safe, nontoxic and will never dry out. Proudly Made in the USA with the help of exceptional individuals challenged with intellectual & physical disabilities. 13.3g tin. Fun for ages 3+. This neon pink Thinking Putty is sure to supercharge your mind... Stretch it, bounce it, pop it, tear it, and sculpt it!