135 Film Magazine Opener Darkroom Operation Film Development Processing Aid Film Opener Darkroom Operation : This film magazine opener is designed for darkroom operation, allowing you to develop your photographs with ease and precision. Film Development Processing Aid : It serves as a processing aid for film development, ensuring your photos are developed correctly every time. Origin : Mainland China Photography Accessories Type : Darkroom Equipment The 1.135 film cassette is made with a solid metal cut-out tool with a semi-matte black surface to prevent unwanted reflections and is very convenient to use. 2. It is suitable for situations where the membrane head cannot be removed during the development process. 3. Please operate in a darkroom to prevent damage to the film due to strong light, resulting in unusable film exposure Please note that once the film cartridge is opened, it cannot be used again. _x000D_