The Original Index Knobber II is an ideal instrument for clinic or home use. Molded in highly durable polymer, it allows the user to apply deep, sustained and precise pressure to trigger points and to sore, stiff muscles. Hands-on therapists rave about how easy it is to use The Original Index Knobber II tool because it protects the hand and forearm against fatigue and overuse while allowing maximum control and sensitivity to the patient.