Simply bend two prongs outward & push through the pre-punched slits on any Smead divider, & you've instantly got a fastener to organize both sides of your divider or partition. Add instant organization & security. Simple to install on any pre-punched Smead divider. Twin prong has 0.63" capacity on one side & 1" capacity on the other side. Standard two-hole punch configuration (2.75" Center-to-Center). Metal with brown enamel finish. One-Piece Two-Prong Fasteners for Smead Self-Adhesive Pre-Slit Folder DividersPair these fasteners with self-adhesive, pre-split dividers to turn your standard file folders into classification-fastener folders (no compressors required). Fastener Subtype: One-Piece Two-Prong; Fastener Capacity: 0.63"; 1"; Fastener Sheet Capacity: 50 Sheets; 80 Sheets; Center To Center: 2.75".