As the summary says, these are Gridfinity storage bins, with extra height to fill all the space inside the larger of the two sizes of Durham hardware drawers. These drawers usually include a tray with bins of fixed size, so it can be difficult to fully utilize the space. The tallest of the standard Gridfinity bins only take up a little more than half the available height, so there's potentially a lot of wasted space if you want to ditch the Durham bin in favor of Gridfinity. These bins solve that problem.
Like my other Gridfinity models, these are modified to accept 6x3 magnets as a press fit, with the upper surface of the magnet holes modified to make the slicer bridge across correctly for a clean result.
The author remixed this model.
Custom height for full size Durham parts drawers.