Specifications: Material: Ox bone Nut size: 42 * 4.6 * 3.5mm / 1.7 * 0.1 * 0.1in Package size: 7.2 * 5 * 0.4cm / 2.8 * 2 * 0.1in Package weight: 1g / 0.03oz Package List: 1 * Nut