ACCO fastening devices and business essentials help organize all types of workspaces, from cubicles to classrooms. ACCO Economy Prong Fastener Bases are an affordable alternative to premium fasteners. They feature a bright tin coat finish and smooth, safe, coined edges. The prong to prong size is 2.75 Inches and they work with 2 Inch capacity prongs. These fasteners are available as complete sets, which include both prongs and bases, as well as components which are sold separately. Every little detail leads to success, and even these small products help make big impressions.