16", 33Sl Pro-Guard Premium C-Loop Chain, 66 Drive Links, Ultra Low Kickback Chain For Both The Professional & The Casual User, Helps Chain Travel Smoothly From Cutter To Cutter, Fills Gap Between Cutters & Shields The Depth Gauge, Minimal Added Feed Force Needed For Good Performance, Meets ANSI Standards & Is UL Classified, Fits Echo, Husqvarna & Poulan Chain Saws.