SSI SCHAEFER brought together all of our knowledge from all special applications to produce an innovative high-tech product, designed using a new material and tooling technology. Made of a new blend of FDA approved high-density polypropylene, the ELB Lid is very flexible yet sturdy, silent for use in conveying systems, and approximately 40% lighter than comparable Straight Wall Containers on the market. (SKU # ELBD.43GY1)