Description:Sturdiness: The guitar lock nut is of firm, durable, sturdy and lightweight brass and bone made with high requirements. Labor-saving: The design and the helping tools coming with the package can help us to install the nut easily, which is labor-saving. Tuning Accessories: By using or replacing the guitar parts, they can help us to better control the sound made by the guitars. Fitment: The guitar components are carefully made to be the special replacement for 6 strings guitars and please kindly make sure first. Lightweight: The guitar part are of small size and lightweight, so it will not bring too much stress to your instrument. Specification:Material: Brass, Bone.Color: Black.Size: Approx. 43.4x14x7.5mm/1.71x0.55x0.30inch.Nut Size: Approx. 43.4x4.5x8.6mm/1.71x0.18x0.34inch.Note:There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes:1 Piece Headless Guitar(with 1 Piece Nut, 3 Pieces Screws, 1 Piece Wrench).