Give your muscles a precise acupressure massage with the PinPoint Trigger Ball from Fitness-Mad. Helps to release tight smaller muscle groups and 'flush out' toxins which can buildup in the muscles. The blunt spikes provide acupressure release for the; feet, hands, shoulders, upper back, forearm, outer leg, or hips. Ideal for use against a wall to target trigger points and tight muscles in the back, or any time your muscles feel tight. It may be small but it is mighty!