ITEM NAME:Chainsaw Rim Clutch Sprocket 3/8' 7T For 0000 642 1240 MS250 MS250C MS260B Hn.Compatible with Stihl Chainsaws 021, 023, 024, 025, 026, MS210, MS210C, MS230, MS230C, MS231, MS240, MS241, MS250, MS251, MS260. This New chainsaw rim sprocket 3/8" 7T is designed for Stihl Chainsaw.