Material: This electric guitar tuning pegs are made of iron, which are sturdy, durable and not easy to damage so that can be reused for a long time.Spare parts: The iron musical instrument keys tuners are suitable to be used as a replacing part to replace the old or broken accessory of the guitars.Easy installation: The stringed instruments tuning buttons are small in size and lightweight which can be installed on the electric guitars.Wide usage: This guitars knobs handle has a wide range of usage, which can not only improve the sound quality but also can improve your DIY repairing skills.Fit people: The instrument replacement accessory can be used as a special gift for both professional musician and guitar beginner players.Specification:Color: Silver, black, gold.Material: Iron.Appearance size: Width: Approx. 17.5mm/0.68inch.Mounting hole size: Approx. 3.8-4mm/0.14x0.15inch.Note:There might be a few color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Package Includes:6 Pieces Guitar Tuning Peg Knob Handles.6 Pieces Mounting Screws.6 Pieces White Plastic Mounting Sleeves.6 Pieces Metal Mounting Ferrules.