Tungsten magic couple pendant. Special design for lovers. Wish this pendant will bring you good luck for both of you. Tungsten Magic couple pendant* Tungsten Carbide Properties (always see precautions in FAQ)* Hardest metal on earth* Extremely scratch-resistant* 4x harder than Titanium* 5x harder than steel* 10x harder than 18k gold* Highest melting point of all metals 2780°C* 9 Mohs hardness ...