The 20 x 24" Roscolux #376 Bermuda Blue Filter Sheet from Rosco is part of the line that is widely recognized as the most versatile range of color, correction, and diffusion filters for entertainment lighting. Originally introduced in the United States, it is now available all around the globe. Roscolux is manufactured from deep dyed polyester, which provides superior consistency and durability when installed in front of hot theatrical, film, or TV fixtures.