Val-u-Putty™ has the same great feel as the traditional CanDo Theraputty hand exercise material. Available in 6 resistance levels. Val-u-Putty™ is available in Berry Colors. Each color-coded putty has a different consistency ranging from xx-light for strengthening the weakest grasp to x-heavy for developing a stronger grip. The putty material is gluten, casein and latex free.