OEM Standard Steel Prong Paper Fasteners, sold in a box of 50. This complete two-piece fastener includes a prong base and compressor, making it ideal for use in file folders that require frequent modifications or additions. The locking compressors slide over the base prongs to keep papers tightly compressed, optimizing filing and storage space. Both the bases and compressors are constructed from brightly finished, corrosion-resistant tempered steel, ensuring durability and reliability.