Rosco Roscolux #06 No Color Straw Filter is manufactured in a unique technology to insure the longest possible life under hot theatrical lights. Three discrete layers are combined in a tri-extrusion process. By sealing the colored layer between two microscopically thin layers of clear film, dye migration is minimized and effective life is extended. | Rosco | | lux #06 No Color Straw Filter, 24"x25' Roll | Best Buy