Supreme Tech 303mm x 303mm x 3mm Acrylic See-Through Two-Way Mirror, Scratch Resistant

12 inch x 12 inch x 0.12 inch see-through acrylic (approximately 40% transparent). Can be used for a smart mirror, surveillance, or theatrical application. Shatter resistant, unlike glass. Slightly bendable. A two-way mirror is coated with a thin, almost-transparent layer of metal. The result is a mirrored surface that reflects some light and is penetrated by the rest. Light always passes equally in both directions. However, when one side is brightly lit and the other is dark, the darker side becomes difficult to see from the brightly lit side because it is masked by the brighter reflection of the lit side. 2nd photo monitor off. 3rd photo monitor on, bright room. 4th photo monitor on, dark room. 5th photo reflection of ceiling light. 6th photo ceiling light seen through mirror. 7th photo demonstrates nature of two way mirror. Be sure to remove thin protective film from both sides before use. Side with blue protective covering may have a 2nd clear protective covering underneath. Protection may be scratched, but underlying mirror should be unscratched. Blue covering is on reflective side, clear covering is on back of mirror. The scratch resistant version has a coating that protects the non-reflective side of the mirror. The side with this scratch resistant coating should hold up to some wear and tear. Be sure to face the non-reflective side in the direction that receives the most wear. The side with reflective coating can be damaged easily, so avoid wiping it with anything if you can. Please see FAQ in description area below for more useful info.