Using your handheld square makeup mirror is easy. Just hold it in your hand and use it at your toilet table for applying makeup. Make sure to handle it gently to avoid any damage. When cleaning, use a soft, dry cloth to wipe the mirror surface. If there are stubborn stains, you can slightly dampen the cloth with water, but be careful not to let water seep into the edges. Keep in mind that the color you see on your screen might be a bit different from the real mirror, and there could be small measurement differences. Store the mirror in a safe place when not in use to prevent scratches.