Wittner Finetune-Peg 270 131S 04 Pegs for 1/2-1/4 Violin These are pegs for violins that allow for easy tuning. Gears are built into the pegs. Specifications ■ Set of 4 ■ For 1/2 and 1/4 size violins ■ Taper: 1:30 ■ Ring diameter: 7.2mm ■ Color: Black ■ Material: High-tech composite plastic I purchased these new, but did not use them. There is an instruction manual, but it is not in Japanese, so please be aware. Installation may require modification, so please consult with a stringed instrument workshop. Although unused, these have been stored at home, so please purchase only if you understand this.