TUS 3650R Cotton Pro Natural Cotton Blended Dust Mop Head, 36" x 5". Ha-Ste branded Cotton Pro sewn series cotton dust mops with color coded orange synthetic keyhole backing. This dust mop accepts standard 36" x 5" dust mop frames. Keyhole style backing with snaps. We also offer this same style dust mop in a 12" width up to a 72" width. Dust mops are individually packaged in a poly bag. Priced per dust mop head. Our Part Number TUS 365OR.