■ This is a setter for violin and viola, used for installing and adjusting the sound post (soul post). Please bend it by hand into the shape shown in photo 5. Insert the Setter into the sound post and insert it through the f-hole to set up the sound post. The position of the sound post is very important, and the sound can be improved or worsened by fine adjustments. Use the Setter to lightly tap, push, or pull the sound post to move it and make fine adjustments. ※ Price negotiation not possible. ※ On Saturdays, Sundays, and holidays, the post office is closed, so we will ship on the next business day. (If holidays are consecutive, it may not be possible to ship within 2-3 days)