Annular Buffer / Stihl 1121 790 9909Pack Size:1Stihl 1121 790 9909, Stihl 1121 790 9905, Stihl 1121 790 9906, Stihl 1121 790 9907HL Supply H56024Stihl 024, 026, 028, 038, MS240, MS260, MS380, MS381 chainsaws OD: 1 1/4", HT: 1", ID: 1/4"