HW HAMWOO The 4 sizes for 18 GA narrow crown staples ( 1/2"-600 pcs ,3/4"-600 pcs ,1"-600 pcs,1-1/4"-600 pcs ), total 2400-count.,Fasteners per stick: 100.Galvanized surface treatment makes the stapler nails keep the strong rust & corrosion resistance.The T-shaped head and Chisel point design with strong penetrability lets you use stapler nails very easy,and you will have no jams and buckles, and interruptions.It is a ideal choice for photo frame assembly,repairing art crafts, cabinet construction and other DIY home improvement projects.It is suitable for most brands of 18 gauge Pneumatic and Electric stapler Nailer very well.