Size:210*8mm WT:35g, suitable for 16.5cm-17.5cm 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 Personalised Tungsten Carbide 21cm Long Bracelets Hologram Energy Bracelet Fashion Link Chain Jewelry Gifts For Mens And Womens