The only small parts storage bin that can Nest & Stack, versatile bins are designed for use in multiple areas. Stacked on a shelf, workbench, or wherever you require small parts storage and organization. Help organize work areas and expand storage space without adding shelving. Bins are resistant to weak acids and alkalis. Sturdy one-piece construction is water, rust, corrosion proof and guaranteed not to break. Unique post and rib design allows bins to stack securely and nest for compact storage. Interior corners are rounded and tapered.