Solid strength will help you sort. The 18 Compartment Literature Sorter has huge openings to oblige larger than usual envelopes. Enormous mail arranging openings hold 5 lbs. each. Dark plastic embellishment performs twofold responsibility, first as an appealing accent to the completion and second as a name holder for recognizing the canisters (names are incorporated). Stack up to two high to expand arranging ability. Built with 3/4″ strong packed wood with customizable hardboard dividers. A tough cover finish will commend any setting. Strong fiberboard back gives steadiness to the unit.