The 30X magnifying mirror is extremely powerful, making it ideal for focusing on specific parts of your face or eyes in great detail. It can reveal fine lines and spots, blackheads, and other imperfections you normally can't when using a regular mirror or less magnification handheld mirror. You can even see a stray hair in your eye! The 3 suction cups make it easy to mount and secure. It can also be unmounted to use as a handheld mirror.