Lid for Corrugated Plastic Storage Postal Totes. Corrugated Plastic Storage Postal Totes are an 11 US gallons rugged utility tote. For added strength and rigidity, the totes are reinforced with a wire rim and are sonically welded at key stress points. Wrapped hand holes make for easier handling. These lids are sold separately form the bins and allow the totes to be stacked. Shipped flat, with easy assembly. Fits the 18.25" x 13.25" x 11.6" Postal Tote. Pack of 4.. Fits the 18.25" x 13.25" x 11.6" Postal Tote. Keeps contents safe. Makes the totes stackable. 100% recyclable plastic construction. Ships flat. Folds together easily. 3+ years. Grade PK+