Muxico&reg; 6 String Acoustic Guitar Bone Bridge Saddle and Nut Guitar Parts-Black Compatible Models: All Kinds of Guitar Material: Plastic Application: Improve the guitar tone Easy to use and carry About us (Muxico), Professional factory of Musical Instruments, welcome to our store for more choices with best price. What we pursue is your satisfication of our service, not just for our goods.For any reason you are unsatisfied with our product at any time, simply contact support for exchange or refund. we will reply you about any question you ask within 24 hours