9780 Features: -Pneumatic Roofing Nailer up to 1.75".-See-through nail magazine.-Contact mechanism prevents accidental firing.-Built-in shingle guide.-Adjustable air exhaust.-High impact carrying case.-Model Number: 9780.-Capacity: 120 Nails.-Operation Pressure: 70 to 100 PSI.-Maximum Pressure: 120 PSI. Construction: -Light weight, rugged cast aluminum construction. Assembly Instructions: -New roof, re-roof, box assembly, siding. Dimensions: -Dimensions: 12.5" L x 11.0" W x 4.5" H.-Weight: 4 lbs.