Description: 1.The pin with 29.5mm/1.16inch length,8mm/0.31''''diameter of the head,and the 5.2mm/0.21''''skirt /collar biggest install diameter;and the 5.2mm/0.21'''' skirt /collar biggest install diameter please confirm the size when purchasing to prevent your inconvenience from being too large or too small 2.High quality:durable pure brass pins, and not easily to be oxidized and broken.Brass is much harder and longer service life than bone,tusq or plastic 3.Designed for better tone:brass provides better vibration transfer through the bridge and give your a better tone,more stable frequency and eliminate waterfall sound 4.Replace parts safely:plastic bridge pin puller inside for better convenience,no longer need pliers or side cutters to pop pegs out and risk damaging guitar 5.Wider use:fits for most acoustic guitars and great replacements for your old or damage guitars. Can be applied to acoustic classical guitar,folk guitar,ukulele,martin,or any brand acoustic guitar Specifications: Color:Gold Material:pure brass and plastic Package Includes: 6 * pure brass guitar pins 1 * Guitar Bridge Pin Puller 5 * Guitar Picks