The Perfect Fit: A Guide to Your Custom Rei Design Piece At Rei Design, every piece is custom crafted to reflect your unique style. We believe that comfort is just as essential as aesthetics; a perfectly fitted ring ensures you can enjoy your piece with ease and confidence. To ensure your custom ring fits perfectly, please follow one of the methods below: Method 1: Measuring an Existing Ring If you have a ring that already fits the intended finger perfectly, you can determine