This is a clean non-toxic, non-oily and bleed-proof putty that leaves no colour or residue on a patients hands. Therapy Putty can be pushed, pulled or turned through putty to produce specific exercises. Changing the putty resistance will increase or decrease the difficulty level. Stimulates functional activity and teaches joint protection techniques. Excellent tool for hand/arm strengthening needs. Can be squeezed, stretched, twisted or pinched. Latex Free. Comes in a 113g container and can be chilled or microwaved.