More 24++ 6 String Acoustic Guitar Tuning Pegs. Free delivery and returns on ebay plus items for plus members. Name:guitar string tuning pegs type: Metallor locking guitar tuning pegs tuning keys machines heads string tuners 6 in line right handed for electric guitar acoustic guitar parts replacement gold. Our guitar tuning guide plays each string 8 times over a period of 16 seconds, which should give you plenty of time to correctly tune your guitar.