RingThing, the Ring Bottle Opener, Size 15
This stylish finger ring doubles as a handy bottle opener. Made from stainless steel, the Ring Thing is comfortable to wear, guaranteed for life, and easy to use. The Ring Thing should fit snugly on your social finger (middle finger). Measure the the widest point of your finger (usually the knuckle) against a ruler at and match it to the closest size in the chart below. You can also wear the Ring Thing on other fingers if you like.