SCHAEFER Polyethylene Stacking Containers help you manufacture, transport, and store—cost effectively! Open mesh sides allow high visibility and good air flow for refrigeration or drying. Made of high-density polyethylene for rigidity, strength, and durability. Lighter than solid-sided containers. All sizes can be interstacked as shown for more effective use of space. Convenient hand holds on all 4 sides—can be lifted from any side. Strong stacking rims and external ribbing provide added strength. Smooth inner walls. Smooth, thick base for silent movement on conveyors. Choice of solid or mesh base. Optional mobile base with 3" rubber casters turns a container into a handy cart. Lids available. Made in USA.