【Good variety in different 3 sizes】The 3 sizes for 18 GA norrow crown staples ( 1/4" width:1/2"-400 pcs ,3/4"-400 pcs ,1"-400 pcs), total 1200-count。 【Strong penetrability】The T-shaped head and Chisel point design with strong penetrability lets you use staples very easy,and you will have no jams and buckles, and interruptions. 【Fit a variety of brands of 18 GA stapler】 The staples fit most brands of 18 gauge 1/4" norrow crown stapler or staple gun very well. 【Wide applications】It is a ideal choice for photo frame assembly,repairing art crafts, cabinet construction and other DIY home improvement projects. 【304 Stainless steel staples】304 stainless steel makes the staples keep the stronger rust & corrosion resistance than galvanized staples, it is suitable for outdoor use. SimCos 18 Gauge 1/4" Narrow Crown 304 Stainless Steel Staples (1", 3/4", 1/2" ), Assorted 1200 Counts for 18 GA Pneumatic or Electric Stapler or Staple gun,Project Pack