TheraPutty Exercise Putty resistive hand exercise material helps to strengthen hand muscles and grip, improve fine motor skills and decrease stress. Each of the six color-coded putties feature a progressive firmness ranging from xx-soft to x-firm. This is a 2 oz. container of the Tan Theraputty - XX-Soft. With six resistance levels, options to make exercises more challenging include using a higher-level resistance putty, a larger quantity or increasing the number of repetitions. The putty is gluten, Latex and casein-free. Safe for all, Theraputty is non-toxic if swallowed and will not dry out.