This is an LPL-made change bag, a portable darkroom made with thin and durable rubberized black habutae silk. - Model: LM type - Size: 600 x 560mm - Material: Rubberized black habutae silk - Usage: Used for tasks such as reloading sheet film and loading film into developing tanks. It's about 15 years old, but it's only been tested and never actually used. Thank you for looking.