Feature: equipped with two multi-format self-feed spirals. The simultaneous rotating and undulating movements of the spirals ensure that the chemical runs uniformly inside the tank, which can be accommodated the 2 rolls of 135/35mm films at a time or 1 roll of 120 film.
Warning: Red cap of the tank not water tight seal. this tank can't be upside down for processing film.
Film Changing Developing Darkroom Bag Anti-static Material Darkroom Zipper Bag Double Layer for Film Replacement Film Development Professional Film Photography Supplies
3-Channel Count Up Timer ---- There is a set of positive timing functions. Press the "START/STOP" button to pause or start the timing. While paused, press the "CLEAR" button to easily reset to zero.Excluding Batteries