Bilt-Rite Mutual Handheld Electric Massager is designed to improve blood circulation and create comfort relief. The built in magnets create a magnetic field which improves blood circulation. The product includes 6 attachment heads for different uses; Mild massager head, Micro pinpoint massager head, Massaging fingers head , Pinpoint massager head, Acupuncture massager head and double roller massager head. The massager has 2 power settings with an adjustable 90 degree head-twist handle. The 270 degree rotatable head makes it easy to use from any direction. Adjustable Head-Twist Handle-Includes. 4 different massage heads. Built in magnets create a magnetic field improving blood circulation. 4. 5x4. 5x19. 2 Power settings