lightsafe box for sheet film

A lightsafe box for sheet film up to 4 x 5 " size. I would recommend to put the film sleeves into a black plastic back like those in the original boxes by Ilford, Kodac, Foma, etc. 
 

The box consists of three trays that can be stacked into each other. In case that the outer tray isn't that tight you can put a rubber band around the box.