Each ring from Blue Blood Metal is individually handcrafted. Though rings are made in advance, others can be customized to suit the wearer's specific size. When ordering a custom size, select "Custom" from the size selector. You will be prompted to enter your size once you click "Add to Cart". Custom orders take approximately three weeks. If you have specific questions about sizing or availability, please contact me before you place your order. Shipping in US only, 45 days for full return. Thanks for shopping and enjoy!