The GLOSSY GALLERY 24in x 24in square mirror is made from 1/8 inch (3mm) high-quality acrylic. This acrylic mirror is lighter, stronger, and safer than a regular glass mirror. Its bright reflective finish and tough protective backing make it ideal for a school, hospital, kids’ room, gym, zoo, retail store, restaurant, RV, boat, or anywhere a safer alternative to glass is needed. The frameless design mounts directly to most flat surfaces and includes rounded edges for added style and safety. Corner holes and screw mount set provided for easy wall installation. The mirror can be mounted vertically, horizontally, or diagonally. Corners are slightly rounded to remove any sharp points. Sizes are approximate.