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• 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.