Plastic sheet type collation, drives from 1 to 2 1/2 Inch, operating pressure 210 - 320 psi, sequential trip type firing method, dimensions: 15 3/4 Inch height X 3 3/8 Inch width X 12 3/8 Inch length, air consumption: 0.166 ft 3/cycle at 320 psi, Includes : Box of 1000, 1 1/2 Inch concrete nails