Choosing the right ring size can often times be very difficult. If a jewelry store is easily accessible, they will size your finger for free and tend to be the most accurate method. Please try getting sized with a wider ring sizer if possible. The barrel band is just over 5mm wide, so I thinner ring sizer, will not produce the most accurate results. If a getting your ring sized professionally is not an option, please shoot us a quick email and we will send you detailed instructions on what to do.