Anti Fog Design: the LED tooth mirror is designed with high definition anti fog lens, it will do not interfere with your ability to see the inside of your mouth, simplify your work and have a reliable user experience Specific Product Information: the dental mirror with light is built in 3 LR44 batteries, 10 hours of continuous operation, long lasting battery, product length is about 15 cm/ 5.9 inch, round mirror diameter of 2.5 cm/ 0.98 inch Observe More Clearly: the extra bright LED teeth mirror is practical, its shape and design allow you to see most angles of your tooth, it is helpful to examine hard to see areas and to find stains on the inside of the mouth, and for further teeth caring when cleaning Easy to Grip Handle: our light inspection mirror is designed with an ABS plastic handle and switch button part, the handle has a grain design, which increases the friction force, and the waterproof and anti skid handle is easy to operate Versatile Applications: the mirror with light is not only for you to watch oral condition, but also can be applied as a practical helper during lash extension, or observe the details of eyebrows, nose, mouth, face, or another place you want to see