Abstract: A device for manually sorting paper products includes a rigid lower divider support base holding a plurality of essentially flat, planar, semi-flexible dividers. The dividers are slidably held within the divider support base to provide adjustability in sorting articles of varying thicknesses. In one embodiment, each divider rotates forward and rearward within the divider support base to position and view the contents held within the dividers. The dividers include at least one protruding recessed shoulder to engage a channel in the divider support base to retain the divider in place in the forward or open position. In another embodiment, the dividers are maintained in a vertical position and are slidably held within the divider support base. The dividers can each include an indexing tab on an upper portion.