A silver-colored stainless steel box, designed with an inner container that holds a reel for loading film intended for developing. The reel is connected to a central axis, allowing it to fit between metal wires with space left between the rolled layers. It accommodates up to 36 frames, and this process is conducted in a darkroom. The lid features a covered opening through which developing materials are inserted and removed. The container can hold 225-250 ml of liquid.

Made in Japan.