This coil of staples is ideal for use with the booklet maker feature of the Phaser 7760 printer. Booklet maker staples are simple to replace, and they easily turn documents into saddle-stitched booklets for your convenience. These staples were engineered specifically for unparalleled performance with the Phaser 7760 Professional Finisher.PRODUCT FEATURES:5, 000 staples per cartridge.