High-performance circular polarizers. Select your handedness, Left or Right Note: for most applications (such as glare control) the handedness is not important unless you are using them in pairs (for example, 3D displays). We offer both left and right-handedness for maximum flexibility. It comes in three sizes: 20x10 cm (~8x4 inches), 30x20 cm (~12x8 inches) and 40x30 cm (~16x12 inches). Made by gluing a linear polarizer to a high-performance quarter wave retarder sheet. Greatly improved transmission compared with classic 3M (Polaroid) HNCP37 circular polarizer (click here for plot). We also have in stock circular polarizing material (left handed) with adhesive (up to about 20 x 15 inches). Please email us to inquire size availability and price.