Features: 1.For Electric Guitars: There are 6 pieces guitar tuning keys in this package that they are suitable for electric guitars of appropriate size. 2.Adjust String: With these tuning pegs, you can quickly and accurately adjust the guitar strings to help with your performance. 3.Keep Tune: These tuning pegs can tightly fix the strings and keep the guitar tuned to improve the fun of playing. 4.Metal Material: Made of premium metal material, these pegs are strong and sturdy, ensures long life span and good using experience. 5.Easy Installation: Comes with complete mounting accessories, these tuning pegs are easy to install and removal. specification:Item Type: String Tuning Key Material: Metal PackageList: 6 x String Tuning Key 6 x Stud 8 x Screw NoteThe screw hole position cannot be guaranteed to be the same as the hole position removed from the your original piano! Because the provided center point distance has measurement error, then several hole locations may be offset up and down as a whole. If the deviation range of the screw hole position is small, you can use a toothpick or a small stick to get some glue. Fill the original hole first and then screw the screw again. If the deviation is large, new holes can be opened directly. Please consider before purchasing. If you strictly require consistent hole positions, please be careful! Thank You for Your Cooperation!