Piston Rings Std / Stihl 1128 034 3000Pack Size:1Stihl 1128 034 3000Ahlborn FOR-6326, HL Supply H05012, HL Supply CR5012Stihl 044, MS 440, MS 441 chain saws; TS 410, TS 420 Cutquik sawsCylinder Diameter: 50 mm, Ethanol: Not compatible with greater than 10% ethanol fuel, Packaged in reusable protective polycarbonate case