WITTNER ZW 917-Violin 4/4-3/4, 0.31'' Fine-Tune-Peg for Violin 4/4-3/4, 0.31'' 7.8mm 1 set (4 pegs) of WITTNER Fine tune-PEG for VIOLINE 4/4-3/4 Diameter at Ring 0.31 inch (7.8mm) Made of "high-tech" composite material and light alloy Made in Germany