Footjoint for H flute ・New, unused ・Finish: Silver plated ・Main tube connection inner diameter: Approx. 19.9mm ・Confirmed to fit YAMAHA YFL-23 flute. ・Some adjustment may be required when fitting to YAMAHA YFL-211/211S flutes. ・Regarding adjustment of the footjoint: If the footjoint is slightly thinner than the body tube, you can adjust it by slightly reaming the inner diameter of the footjoint with a grinding stone or sandpaper attached to an electric drill. If the footjoint is slightly thicker than the body tube, you can adjust it by wrapping copper or aluminum tape around the connection part of the body tube. ・Returns are accepted if the size difference with your instrument is too large to use. ・In case of product return, please bear the shipping and return shipping costs. Thank you for your understanding.