The Prime Photo Products Loadomat 20 is a bulk film loader designed for 120 and 620 film, providing a convenient and efficient way to load large quantities of film. Manufactured by Picture Perfect Products in the United States, this black-colored loader is perfect for photographers looking to streamline their darkroom or developing process. Its durable construction and user-friendly design make it an essential tool for film photography enthusiasts.

Daylight Operation: Its standout feature is that the entire process—from loading the raw film onto the internal reel to pouring in the chemicals and developing—can be performed entirely in normal room light, eliminating the need for a darkroom or a changing bag.

I have NOT TESTED it. I don't know how. Comes with book.