100x30mm First Surface Mirror – Optical Front Surface Reflector For DIY Projectors & Science Projects

About This Product

Working on a DIY projector or an optical experiment? This first surface mirror is exactly what you need. Unlike regular mirrors that have the reflective coating behind the glass (which can cause double images), this one has the coating on the front surface—giving you a crisp, true reflection with no ghosting. The size is 100mm x 30mm (about 3.94 x 1.18 inches) and it’s made from optical glass for high reflectivity. Great for modifying projectors, building custom optics, science fair projects, or even artistic installations. Handle with care—the front coating is delicate and can scratch easily. A must-have for tinkerers, hobbyists, and makers!