This all-wood massage tool is another traditional favorite of therapists and self care enthusiasts who prefer the look and feel of natural, turned wood. The Knobble gives your hands more power when they need it. Use the tip, base or side to apply deep pressure massage to sore muscles and trigger points. The Knobble massage tool is designed to reduce Repetitive Stress Injury (RSI) to the forearms, wrists, hands, fingers and thumbs while applying deep or prolonged pressure to muscle knots or taught bands of contracted muscle tissue. Applying steady pressure to tense, contracted muscle helps them to "release" and relax. The Original Knobble can be used over clothing or with massage oil directly on the skin.