Ordering Accessories in Order Hub Log in to the Order Hub Click Accessories Choose your accessory - both are model specific Sizing Kit (Gen 3 or Oura Ring 4) Charger - size specific (Gen 3 or Oura Ring 4) Related articles Bulk Ordering to One Address Return or Exchange an Oura Ring from a B2B Order Activating an Oura Ring and Business Membership Shipping Prices CSV Information and Troubleshooting