8sets Blank Bone Nut & Saddle Acoustic Guitar Saddle Nut (8pcs Nut 52 X 6 X 9& 8pcs Saddle 80 X 3 X 10) Nut size :52mm x 9mm x 6mm Saddle size :80mm x 10mm x 3mm Made of cattle bone material, which improve sound to be more fantastic than cheap plastics. Package include: 8pcs nut and 8pcs saddle. 4-14 days delivered to United States from China with tracking number!