Double BallNed Steinberger designed his legendary headless bass in 1979. Jokingly called the "paddle". A to the essentials reduced instrument without a headstock with minimalist Body and futuristic hardware. It did get its share of shaking heads but then also growing enthusiasm. Besides the Bass guitar the Electric guitars followed suit. Steinberger instruments requires special strings, which are equipped with a ball end on both ends. The Steinberger Double Ball strings are available in various strengths for basses, guitars and baritone guitars.