I bought several of these on a great sale and find them super-easy to assemble and use.  They are the perfect size for most chargers and the window on the side makes it easy to identify what's inside.  I put an index card up to the window inside telling me color and how many chargers are in each chest.  Hoping they go back on sale so I can add more at reasonable price.  The depth keeps me from over-stuffing so they do not become too heavy to carry.