18" 20BPX .325" Pitch .050 Gauge Pro-Guard Premium C-Loop Chain. This ultra-low kickback chain ensures smooth travel from cutter to cutter, reducing the risk of accidents. It fills the gap between cutters and shields the depth gauge, minimizing added feed force for optimal performance. Meeting ANSI standards and UL classification, this chain is compatible with Craftsman, Cub Cadet, Echo, Homelite, John Deere, Makita, Mcculloch, Pioneer, Poulan, Poulan Pro, and Shindaiwa.