260 piece, pocket hole screw starter kit, includes (50) 1" coarse, (50) 1-1/4" fine, (50) 1-1-/4" coarse, (50) 1-1/2" coarse, (50) 2-1/2" coarse, (3) 2-1/2" coarse & (30) 2-1/2" coarse, outdoor/indoor use screws, have self tapping tips, coarse threaded screws are used in softwoods & fine threaded screws are used in hardwoods, flat bottomed screw heads fit snug in pocket hole to make strong lasting joints, divided carrying case with built in screw selection chart.