Small parts LEWISBins+ Systems 12 Bins stack securely atop each other for static storage of parts used in health care, industrial and hardware markets. Contoured design offers up to 20% more storage space than conventional bins. Chemical-resistant polypropylene construction. Bins are compatible with many others, allowing for expansion to existing storage areas. May be hung from louvered panels or rails. Labels included. Order bins in quantities specified, priced each. Made in USA.