The Type K Staple Cartridge is a genuine maintenance/refill consumable designed for Ricoh multifunction printers with built-in stapling finishers. It comes in a pack of three cartridges, each containing 5,000 staples — totaling 15,000 staples per box. 
It is used to replenish the stapling mechanism in compatible Ricoh / Savin / Lanier finishing modules to keep finishing operations running smoothly.