If you're not sure of your ring size and can't get it professionally measured, this is the perfect way of checking. Even better, it's super simple to use... Just slip it over your finger and adjust for a comfortable fit (a little like adjusting a belt). Then check that you can slip it off again comfortably, if you can, read the size shown on the gauge and that will tell you which ring size you'll need when ordering your ring.
With each purchase of this gauge, you'll receive a voucher code that can be redeemed against purchases of rings from my collections. That code, will refund you the cost of this gauge, making it free of charge!