This Master Massage tool literally saves thumbs. Overuse injuries in the hands can end professional therapists' careers, but this Green Thumb Saver does the hard work so you can save your hands. Our New Green Nylon Thumb Saver is a new deep tissue massage tool ergonomically designed to protect practitioners from occupational injuries. It allows therapists more focused deeper work with less physical effort. The contoured hand grip encourages neutral wrist positions while working. The ABS construction means the Green Thumb Saver works well with oil and cream, simply wash clean after use.