BenchBins and BowTie™ Bin, and Biohazard Autoclavable Bags BenchBins are designed for bench top use, and feature a push to open/close lid. BowTie Bins are designed to be used with BowTie Bags with a drawstring for instant cinch closure, and a color changing sterilization indicator. Bags fits perfectly into Bins. BowTie Bins have a hands-free foot pedal operated lid.