📷Design Concept: Darkroom bag is an indispensable and convenient tool that everyone needs when dividing film and developing film. | 📷Material: Made of cotton twill fabric & premium thick lining with high cotton content, it is hand-stitched, anti-static, breathable and 100% new for film changing, film development. | 📷Size: Extra large in portable size 23.6"x23.6" film changing bag for bulk loading the film. It is more comfortable to operate, and the negative will not be stained with fingerprints because of insufficient space. | 📷Double Layer: Hidden pocket are made of two inner and outer elastics, the bottom of the pocket is equipped with high-quality zipper and Velcro. The second layer is sealed to ensure that no light leaks during operation. | 📷Advantage: DHNLW Film bag is free you from the confined closet, 100% light-proof, no worries to remove developing tank.