Three keywinds per side, Same Footprint and equivalent to Rickenbacker 00564 (Short). Spindle length 25mm.  Complete with Ferrules and screws.  “Single Line” refers to one line of “Kluson” on rear of casing. Nickel finish.

Suitable for vintage Rickenbacker guitars with thin headstocks, spindle length is 25mm, too short for modern headstocks which require Rickenbacker 00565 Keywinds.(Long)