Bostitch Pneumatic Coil Roofing Nailer RN46-1, 3/4 inch to 1-3/4 inch nail size capacity, 120 nails magazine capacity, 70-120 psi operating pressure, 4.9 lbs weight, 10.5 x 11 x 5 inches dimensions, 1/4 inch NPT air inlet size, sequential and contact firing mode, Additional Items Included: box of coil roofing nails.