Therapy Putty Color Yellow Firmness Soft Material Silicone Size 1 lbs. UNSPSC Code 42251608 Bleedproof, nontoxic, clean and non-oily, therapy putty, leaves no residue and will not fragment, separate, stain or stick to skin Putty can be squeezed, stretched, twisted or pinched to meet a wide range of strengthening needs, or used to encourage heel strike and strengthen foot muscles Can combine different putty to create custom resistance to meet individual needs