Blue Max 5466 16-Inch 37.2cc 2-Stroke Gas Powered Chain Saw 16-inch bar and chain 372 cc single cylinder, 2 stroke; 2800 rpm no load speed; cdi ignition system 0375-inch pitch; 0050-inch gauge; 91 vg chain Rapid-reaction kick-back brake (quick stop), hand guard, safety trigger and convenient on/off switch Optimum engine characteristics with high quality cylinder, auto oiler keeps bar lubricated