This item is a set of mandolin machine heads tuning pegs, which are adopted with strong iron and copper with great endurance and practicability. The pegs are used to fix strings and improve the sound of the instrument. The set comes with 1 pcs 4L tuning machine heads pcs 4R guitar tuning machines heads, 8 pcs ferrules 0 pcs screws, easy to install. design, manufacturing process and accurate grinding ensure practical use and elegant appearance. instrument parts for mandolin/ 8 strings guitar. Feature - Color: Golden - Material: Iron, copper - Peg center holes spacing: 25mm/ 0.98 inch - Overall Size: Approx.117 x 38 x 40mm ( W x H) - Comes with 4 left and 4 right tuners,4 tuning key pegs on a plank. Excellent workmanship, improve your instrument appearance. - Strong metal body ensures great endurance and practicability. - Mainly used to fix strings and improve of the instrument. - 8 pcs ferrules 0 pcs screws are included for easy installation. No extra tools required. - Standard 25mm spacing between pegs, instrument parts for mandolin and 8 strings guitar. Package list: 1 x 4L Guitar Tuning Tuner 1 Guitar Tuning Tuner 8 x Ferrules 10 x Screws