These Akro-Mils Stack & Nest Storage Containers are capable of stacking & nesting for efficient storage when not in use, and for efficient shipping when loaded with product. These totes feature high density injection-molded polypropylene to ensure uniform wall thickness and maximum strength. These storage containers are designed to fit efficiently on a 48" x 40" pallet for easy storage and shipment that will easily fit in with your facility's current workflow.