This is a single PANPI bass bridge. *Adjusters are not included. It has been adjusted to fit a Japanese Cremona bass. Adjustment to match your instrument is necessary. There is a high possibility that adjustments may not be possible. Please carefully check the dimensions and shape in the photos before making your decision. Recommended for those who wish to try processing it themselves or for those who want to have a spare. ・Used item from a single owner. ・Purchased new from the contrabass workshop "Gakki no Yamamoto," and had the adjuster processing and installation done there. ・The seller has not made any adjustments. ・Refer to photos 3/6 for approximate dimensions (there may be a few mm of error depending on the measurement conditions). ・Please check photo 4/6 for details on the screw holes. ・There are scratches and dirt overall. ・Will be delivered as is. *Please note that there may be slight discrepancies between the displayed dimensions/specifications and the actual measurements. Thank you.