Efficient calculus remover: electric calculus remover, with high-frequency vibration technology, can effectively separate dental plaque, calculus and stains, and easily remove hard tartar on teeth. High-quality and safe materials: alloy steel and food-grade silicone, non-slip and easy to scratch, tartar remover is safer for teeth and gums. A variety of tartar removers: Each button has an identifiable function, which can simplify your operation and automatically select the last off mode when it is turned on. USB rechargeable: safe and fast charging via USB, convenient for charging at any time. Effective cleaning: The tip of the surface cleaning head is flat and can clean the surface of the tooth without causing damage. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we'll make you feel satisfied.