Specifications: Color: Gold Material: Brass Pack:(optional) Style 1: 20pcs 2.0mm (for folk guitar) Style 2: 19pcs 2.2mm (for classic guitar) Fret Length: Fret Diameter: 2.0mm / 0.08in(style 1), 2.2mm / 0.09in(style 2) Package Size: 7.2 * 5.2 * 0.5cm / 2.83 * 2.05 * 0.20(20pcs), 10 * 6 * 0.5cm / 3.94 * 2.36 * 0.20in(19pcs) Package Weight: 18g / 0.63oz(20pcs), 24g / 0.88oz(19pcs) Package List: Style 1: 20 * 2.0mm Fret Wires Style 2: 19 * 2.2mm Fret Wires