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Description

Professor Pengelly's thinking putty is perfect for the fingers of creative thinkers. It is designed to never dry out in the tin, allowing you to use it multiple times. It also provides scientific stress relief, so it is great for anyone who benefits from using fidget products This red design is thermo-reactive - add heat and watch the color change. You can create illusions and patterns with it, or just use it as something to fidget with.