CanDo TheraPutty hand putty is the leader in resistive hand exercise material. Available in six color-coded resistance levels CanDo TheraPutty has different firmnesses ranging from xx-soft for strengthening the weakest grasp to extra-firm for developing a stronger grip.Squeeze pinch stretch or twist CanDo TheraPutty using a variety of different finger hand and wrist resistive exercises to strengthen hand muscles improve fine motor skills and decrease stress. Just a few groups this product is ideal for include: physical and occupational therapists golfers tennis players musicians weight lifters children and the elderly. Available in convenient easy-to-open plastic containers (2 3 4 and 6 ounce) for individual patients to use athome and a choice of larger containers (1 5 and 50 pound) for the hospital or clinic. CanDo TheraPutty material is gluten latex and casein free.