Ropak HL4548 lids are compatible with several heavy-duty collapsible containers in the 45" x 48" footprint. Made from structural grade high density polyethylene these lids provide a durable and re-usable cover for bulk containers during transit or storage. The rugged, overhanging lip provides a secure fit while preventing accidental opening of the container’s drop-doors. Raised surface provides additional stability when stacking compatible containers. Lids may be stacked and nested up to 25 pieces for compact storage.