anomixtan Store This is an after-market (non STIHL genuine part), brand new QUALITY 4sets xPISTON KIT that fits STIHL 021 023 MS210 MS230 chainsaw. Piston diameter is 40MM.Replaces OEM Part #: 1123 030 2019, 1123 030 2003Piston comes withgood casting (see picture) and quality is assured.Comes with nice 4 sets of piston packaging box.Seriously good bargain, so do not miss this great listing! Thank you for viewing =)Item sent from Singapore by normal air mail to addressess mailboxEstimated time United States : 7 - 13 days (excluding weekends)Great Britian: 6 - 12 days (excluding weekends)Australia: 5 - 12 days (excluding weekends)P.S: We are confident that you are getting probably the most reasonable retail price for this piston kit (complete assembly) here on eCRATER or elsewhere! This is because we sincerely price our piston kit with the greatest value for our customers.The Crystal-Clear photos taken of our items listed on eCRATER are guarantee of our confidence in the products we sell, and also the assurance of the exact item you will be getting when you purchase our item here. THEREFORE BUY WITH CONFIDENCE AND SATISFACTION =)!!