5pcs Electric Guitar Bone Nut for Fender Strat Replacement The item is shipped from China.The delivery time to US is about 7 to 15 BUSINESS days. Size: 42mm x 3.5mm x 4.5/3.5mm Made of real cattle bone material which can improve sound to be fantastic than cheap plastics. Nut has pre cut string slots and requires very little experience to install.