Design - Blue IP plated tungsten ring, with black carbon fibre centre. The centre has silver coloured cogs and wheels running along the ring Ring profile: comfort fit profile with flat surface Tungsten carbide is a compound of tungsten and carbon, renowned in industry for its superior durability. Our exceptional range of tungsten carbide rings are extremely popular with men who require a wedding ring that stands up to the wear and tear of daily life. Width, 7mmFREE PERSONALISED ENGRAVING.FREE GIFT BOX *** If a particular size is out of stock it may take up to 2 weeks to restock Can be engraved inside the band on request at no extra charge. Limited space for message, works best with perhaps a name and date to mark a special occasion or milestone.