A4 Plastic Mirrors - 21ENC00009 offers a thoughtfully designed, durable resource for hands-on learning. A4 Plastic Mirrors Single-sided optically excellent A4 plastic mirrors. At 1mm thick, they can be simply scored with a sharp edge or cutting knife and bent to render to the required size. They are covered with a peel-off protective film to keep them clean and blemish free. Ideal for reflective symmetry, light experiments or in model making. Also available as A6 (48011).