Johntoy Smart Putty You can create this Smart Putty from Johntoy completely the way you want it. Squeeze and knead and feel the stress flowing out of your body! But it will be even more fun: because of the magnetic material that has been processed in your Putty, your artwork will stick to metal objects! Amazingly useful right? Specifications: Color: brown Gender: junior / unisex Material: rubber Package cross section: 8 cm Age: from 6 years