All plastic construction will not rust, chip or peel; resists dents. Innovative venting channels make lifting out liners up to 50% easier, improving productivity and reducing the risk of injury. Strong, snap-on lids available for secure, stable stacking. Reinforced rims for added strength and durability. Built-in handles for easy, non-slip lifting; easy anti-jam nesting. Double-ribbed base for increased stability and dragging capacity. Lids and dolly sold separately.