Made with metal buttons.The guitar tuning pegs are great for guitar tuningThree on a plank, the guitar tuning pegs is great for guitar tuningThe shaft center to the other shaft center is 34.1mm.You will get 2 pieces Tuning Keys Pegs ( one is for left, the other one is for right )Size:app.10.9cmx4cm/4.29""x1.57""Color: As the pictures shownQuantity: 1 Pair Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it!