Size:210*10mm WT:60g, suitable for 17,5cm-18.5cm wrist size Shipping Delivery within 3-5 business days! Can be lettering and custom patterns. Tungsten carbide is ranked second hardest next to diamond on the Mohs scale, diamond being a 10 followed by Tungsten carbide as 9. Women's Or Men's Unisex Personalised Tungsten Carbide 21cm Hologram Energy Bracelet Fashion Link Chain Bangle Jewelry Gifts For Mens And Womens