Guitar Tuning Keys - LEORX 2pcs Classical Guitar Tuners Tuning Pegs Keys Machine Heads 2 pieces of the classical guitar tuner pegs in one set will be sold together (one is for left and the other is for right). Material: duarble hard acrylic, ABS plastic and steel. Standard 35mm between pegs, suitable for generic 40 inch classic guitar. Ideal to replace your old and dirty tuning pegs and great for guitar tuning. Features beige plastic buttons. Excellent workmanship and easy to use.