KIBVOE new calculus remover helps remove stains, including tobacco, tea, alcohol and bacterial stains, effectively preventing bleeding gums and periodontitis. Toothbrushes are designed to clean only visible tooth surfaces, not tartar. Almost everyone has tartar. KIBVOE is the most efficient way to solve it. high-quality environmentally friendly materials, wear-resistant, rust-proof, anti-deformation performance, one-button layout, simplified operation; built-in 403mAh battery, long use time, No need to charge frequently. Rinse head directly under the faucet when cleaning.