Acco"s Business Essentials collection has every type of product you need to get the job done right! Available in a variety of sizes, colors, shapes and materials - Acco products hold and organize your documents! Acco Premium Prong Fastener Sets are made of a heavy guage, high grade material for superior strength and durability to secure all of your important papers inside file folders. This complete base and compressor set is 2 hole punched and features a 2 3/4 inch prong size with a 3 1/2 inch storage capacity. They feature a tin coated matte finish and coined edges which are smooth and safe. You can count on Acco for the widest range of fastening devices to increase your productivity at home, work, and school.