Tote lid, Natural in color (opaque), Made From Durable And Lightweight HDPE Corrugated Plastic, ships flat in a 3 pack, assembles easily by folding using interlocking flaps, Cut Out for tote handles make totes easier to carry, Postal Service Tested And Approved, Will Not Crack In Cold Temperatures, Works with only Diversiplast part numbers: 219511, 219512, 219513, 219514, 219517, 219518, 219520, 219521