16" Bar & Chain Xtender. It is compatible with McCulloch & Poulan. Made of durable steel, this 72SG-D60 chain features low-vibration full chisel cutters for top performance, smooth cutting, and reduced kickback. The AdvanceCutTM guide bar ensures good durability and control with its small radius multi-rivet nose. It meets ANSI B175.1-2012 specifications and CSA Z62.3 certification.