The Therapy in motion hand therapy putty is the ultimate rehabilitation tool and comes in a variety of different firmness\' to suit your own individual needs. If you are unsure as to what firmness you require, we recommend starting at the softest putty available and working your way up to a level which best suits your needs. Whether your recovering from a wrist or arm fracture or trying to improve grip strength, the Therapy in motion hand therapy putty is the product for you. Therapy in motion hand putty is available in the following firmness; Tan= very soft Yellow= soft Red= medium soft Green= medium Blue= firm