Features: This film magazine opener is suitable for darkroom operation, allowing you to develop your photographs with ease It serves as a processing aid for film development, ensuring your photos are developed correctly The opener is constructed of stainless steel, very easy to use. Please be sure to operate in a darkroom or dark bag, and must not use safety lights. You cannot restores the film cartridge once it opens. Please be cautious about the sharpness opening of the film cartridge. Specifications: Component:Metal Size:Approx.12.5x5cm/4.92x1.97inch Package Includes: 1Pc Cassette Opener note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.