Promote hand-muscle strength and increase endurance.
- Exercising with Rainbow™ Exercise Putty helps promote increased range of motion, finger-flexion and tendon-gliding.
- Rainbow™ color-system associates resistance levels with color.
- Composed of silicon rubber.
- The smaller portion cups are perfect for most small and medium sized hands.
- Not made with natural rubber latex.
Putty Comparison Chart can help you find the desired putty resistance.
Note: The 3 oz size is our most-popular of all sizes. 3 ounces of Norco Exercise Putty is equivalent to 90cc of volume, which is the ideal amount for most hands - large or small.