Safe for all ages, the therapy putty by Vive is made with a nontoxic, odorless silicone that is exceptionally durable for extensive use. Great for physical and occupational therapy, use the exercise putty to improve grip strength and fine motor skills. The therapy putty set includes four, color-coded resistance levels varying from extra soft to firm in separate, easy-to-open containers. Each container holds three ounces of putty to pinch, pull, twist and squeeze for increased hand strength and coordination as well as stress relief. FEATURES Easy Hand Strength Training Perfect for rehabilitation, physical or occupational therapy, therapy putty is used for strengthening the hand muscles, improving fine motor skills and relieving stress. Variable resistance putty can be squeezed, pinched, stretched and twisted to effectively work the hand muscles. Great for strengthening the hands of massage therapists, pianists, string musicians, and athletes. Four Distinct Resistance Levels Gradually increase hand and grip strength with four distinct levels of resistance putty based on industry standard recovery protocols. Varying from extra soft to firm, each easy to open container holds three ounces of putty. 3 Ounces Of Each Color Each three-ounce container of therapy putty is color coded by resistance level for additional convenience. The yellow putty is rated as extra soft. The red putty is soft, the green is medium and the blue putty is rated as firm. Safe, Non Toxic And Odorless Composed of an odorless silicone, the therapy putty is non toxic. Latex free, the silicone putty is durable and able to withstand extensive use without graining or seeping. GENERAL SPECIFICATIONS Uses: Increasing dexterity and grip strength Improving fine motor skills Rehabilitation following injury or surgery Physical and occupational therapy Materials: Non-toxic silicone Size: 3 ounces each: 12 ounces total What’s Included: Extra soft therapy putty- yellow Soft therapy putty- red Medium therapy putty- green Firm therapy putty- blue Instruction booklet with suggested exercises