These opened tuning pegs are a modern version of a vintage design. For 1-left/1-right slotted pegheads. For Most common 8-string MandolinsSet of 2 x 4-on-plate (1-left/1-right) with mounting screws.15: 1 gear ratio for fine tuning, a cast baseplate. the shaft fits in 1/4 inch or 6mm holeCome with bushings and screws.Heavy duty for a lifetime of use.Size: 110 * 40 * 35mmWeight: 134gmaterial: metalColor: silver + blackPackage Contents:2 set * Tuning Pegs(8pcs)8 * washers10 * screwsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.