Very nice product. Love it. My usual ring size is 5.75 (US). I ordered a size 6 and that fits very well. It would be even better if it can come with a pouch and if the delivery time can be shorter. (It takes 2-3 weeks to get to Canada.)
All our sizes are in US sizes. We don't have half sizes, as our rings will match your finger for both. For example, size 10 will also fit 10.5.