Use to keep the contents of hoppers out of sight for a neater appearance. Constructed from heavy-duty virgin black polyethylene material, these lids are lightweight and easy to open. Top of lid includes a crown for water drainage and a ribbed design for strength and aesthetics. Ideal for schools, hospitals, and warehouses. FOB Shipping Point. Due to tariffs and market conditions, pricing subject to change. See Related Items tab for Bumper Release Steel Hoppers.