This is a A-B1DFS50S072P NON ANSI 3/8" SKIP TOOTH .050, 72DL LOOP PN: B1DFS50S072PMain Description As Following : A-B1DFS50S072P NON ANSI 3/8" SKIP TOOTH .050, 72DL LOOP PN: B1DFS50S072P Found in Section & Models : Sunbelt - Chainsaw & Forestry > Saw Chain, Timber Ridge SAW CHAIN LOOP: SEVERAL Associated Items : New Also This is An Aftermarket Product And : SKIP TOOTH LOOP Drive Link: 72 Gauge: .050" Pitch: 3/8"