9.1 x 3.3 x 1.5 inches

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Premium Materials: Food-grade silicone/PC/ABS/304 stainless steel head, IPX6 watertight structure.
High-Frequency Vibration Technology: With ultrasonic vibration to clean up teeth stains and solve most of the problems, such as dental calculus, tooth bacterial plaque. The electric dental calculus remover can be operated for gentle calculus removal by a hand.