Adheres to Any Smooth Non-Porous Surface. 5X Suction Cup Mirrors feature a specially developed and patented vinyl cup for long term adhesion to mirror and tile surfaces. Additional Product Information: Suction Cup Mirrors are made to be break and scratch resistant. The clear acrylic surrounding frame blends in with any background surface. Great quality at a very affordable price. Color: Clear Acrylic Diameter of Mirror: 7 in (177.8 mm) Magnification Power: 7 X