Check the listing for details. Wittner Finetune Violin Peg - 4/4, Medium (8.6mm). Condition: New. Listed at 34.99 USD. Innovative Pegs for Classical Instruments Wittner’s ergonomic and eco-friendly Finetune pegs represent a big payoff, low-cost upgrade for stringed instruments such as violin, cello, and viola. These innovative pegs practically eliminate tuning hassle and strain on the body, with the added benefit of preserving your instrument’s peg box for reduced future maintenance costs. Traditional tuners not only put significant strain on players’ wrists and arms, but they also rarely deliver intended results when stage pressure peaks. Such tuners require 2-point pressure from the wrist that pivots and twists with pressure at the same time, a demanding motion that often negatively impacts long-term wrist health and even costs some performers their ability to play. Finetune innovation changes that.