HURI 10mm Non-universal Trimmer Head for Husqvarna T35 Tap Advance Replace 531300183 Replacement parts,non original Fit Husqvarna trimmers with 10mm thread 123L, 125L, 225L, 223L, 232L, 322L, 323L, 324Lx, 325L, 325Lx, 326L, 326Lx, 326LDx, 322R, 323R, 324Rx, 325Rx, 325RJx, 326Rx and 326RJx Replace 531300183,the fitting is a 10mm diameter thread Package include 1pc trimmer head + 1pc HURI pocket tape Note:you could apply for a full refund if you didn't receive HURI branded pocket tape.