I have a leftover master roll of Red (AMBER as it says on the label) of Thin (2-3 mil?) Poly Transparent tinted film in a master roll in a 3" diameter tube. This can be used for window tint, art, theatrical, or store display projects and I don't think it holds up to stage light temperatures like Gel Paper does but can be used for non-high temperature applications. It is transparent but not perfectly clear and makes for a great optical light diffuser, etc. I took a photo up to the light and it came out more amber than red in the photo but it looked closer to red than amber to me? You can see the second wind of the film and it definitely takes on more of red hue at 2-ply. The length is 300" ( 25 feet long) by 44" wide (3.7 feet wide) I paid over $100 for this for a store display project that never happened.. It comes in a protective hard plastic tube and there is a protective synthetic paper ply throughout the entire rolled up length. $30 Call if interested.