Specification:
★Vibration Speed: 30000/min
★Grinding Head: Totally 3 （one head been installed into the tools, if you want to use other two instead, replace it.）
★Power Supply: 1 x AAAA Battery (Not include)
★Size: Approx. 15.5 x 1.2cm (L*Dia.)
★Weight: 30g

Usage:
★Default mode is steady OFF.
★Press 1 time the button, the LED light will be ON
★Press 2 times the button, the LED light is ON and Vibration is also ON

Package Include:
★1 x Teeth Stain Eraser
★3 x Grinding Head