指輪サイズゲージ（USサイズ1-16、ハーフサイズ） - ゴールドスタンダード

I was skeptical about the high carbon steel construction at first, but it feels incredibly solid and the polished finish glides over rings without scratching them. The half-size markings are etched clearly and are easy to read, which made sizing my own rings a breeze.

The half sizes on this sizer saved me from ordering a ring that would have been too tight, and the polished steel feels solid in hand. It's clearly built to last.

I've been guessing my size online for years and finally got tired of returns, so I grabbed this. The half sizes between 1 and 16 are marked clearly enough that I could tell I'm actually a 7.5, not the 8 I kept ordering. Feels solid too, no flimsy bending.