One 4 x 4 in (10 x 10 cm) sheet of polyvinyl alcohol-iodine linear polarizing film + 1 small test card.
Easy to cut with scissors to any shape.
It is great for science experiments and classroom demonstrations on the polarization of light.
Amazing Secret Monitor! (How To) - YouTube
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See the thicker, laminated heavy duty version as well.
SPECS for this product:
Color distortion NO Polarization efficiency 99% Transmittance single 38% +/- 1% @ 550 nm Transmittance crossed < 0.005 @ 430 - 670 nm Haze 1% Thickness 0.006 inch (0.15 mm) Adhesive layer NO
Keywords: Polarizing Polarized Filter Film Sheet Gel Science Photography Physics 4"x4" polarizing sheet polarizing film polarized sheet polarizer filter polarizing material polarizing filter polarized film polarizing sheet