Amazon.com : OLYMPX 100 Pcs of 1” Capacity Premium Self Adhesive Prong Paper Fastener Bases, 2.75 Inch Center for Paper File Clip Folder Accessories, 100 per Box : Office Products
Smead Self-adhesive Folder Divider, 1" Twin Prong Fastener, Letter Size, Manila, 25 Per Pack (68025) : Target
Smead 68027 Self-Adhesive Folder Dividers with Twin-Prong Fastener
Smead Standard Adhesive File Fasteners 2" Capacity Brown 100/box 68220 : Target
Self-Adhesive Folder Fasteners, 1" Capacity, 2.75" Center to Center, Brown, 100/Box - ASE Direct