Optional side hangers/ledges allow QMB Metal Mesh Bins to stack one on top of the other.
Sold as a pair.
Some hangers feature double names because bins are same length and hangar is usable in either. IE: HMB530C/535C is meant for either QMB530C or QMB353C because they are same length, different widths.
Match last 3 numbers to a QMB series bin