Check the listing for details. Theraputty Standard Hand Exercise Putty -Physical Therapy -2 3 4 & 6oz - CanDo. Color: Multicolor, Condition: New. Listed at 10.99 USD. Resistance Levels - Tan - XX-Soft, Yellow - X-Soft, Red - Soft, Green - Medium, Blue - Firm, Black - X-Firm. Sizes Available - 2oz, 3oz, 4oz, 6oz. 4 Piece Sets - Contains Yellow-X Soft, Red-Soft, Green-Medium, Blue-FIrm. 6 Piece Sets - Contains Tan-XX Soft, Red-Soft, Green-Medium, Blue-FIrm, Black-XFirm. CanDo Theraputty Exercise Material - Small Container - Ideal for clinics, PT/OT practices, hospitals, rehabilitation and therapy centers to distribute as needed for individualized patient care. Also good for home based care, hand strengthening / flexibility / dexterity exercises. Industry-Leading Hand Therapy Putty – CanDo TheraPutty is the most trusted brand among doctors, therapists, hospitals, and clinics for hand strengthening and rehabilitation.