Multi-Sizer Adjustable Finger Gauge: Keep this inexpensive finger gauge on hand for anyone who cant come into your store to be measured. Your customer simply adjusts the sizer to fit and returns it to you. This unique invention is used worldwide as the ultimate solution for a precision ring-sizing tool. The Multisizer works like a belt with a buckle, which easily wraps around the finger, going over the knuckle. When you tighten it into a comfortable fit, an arrow indicates the precise finger size. While costing only pennies each, the applications for use and benefits are endless! Precision finger sizer with full and half sizes.