Brass piano pillow is much ABS plastic piano pillow, you can get clearer, richer and more stable sound; Can enhance the overall grade of the guitar, to improve the guitar's sound quality has a certain role, for guitar replacement; Suitable for the size of the 6-string folk guitar used. Materials: Brass Colors: Gold Bridge Nut Lengthxthicknessxheight: Approx 43*6*8.2/8.8mm Bridge Saddle Lengthxthicknessxheight: Approx 72*3*6.9/7.8mm Package Contents: 1 x Bridge Nut 1 x Bridge Saddle Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.