Polarized Film Sheets 3 PCS 8.2x5.9in/ 21x15cm Polarizer Linear Polarizing Filter Non-Adhesive for Educational Physics Photography Lighting

7.8x5.9in/ 20x15cm Polarizing film: Both sides have protective film, before you use it, you have to peel a protective film off the front and back. Educational Application: Work great for class projects to demonstrate the effects of polarization in a very affordable way. Physical Experiment: Linear Polarizing sheets are used in experiments relating to birefringence, light scattering, polarized light experiments, light reflection. Photography Filter: Use to reduce the glare caused by smooth surfaces such as glass, water, paper, and certain metallic objects. Package: 3 x Polarizing film sheet.