The True Size Ring Sizing System guarantees ring sizing accuracy. Contains 47 beautifully finished, comfort fit, 3 mm wide True Size Precision Sizing Rings with sizes 1-16 in half sizes, and sizes 4-12 in quarter sizes. Each ring is faceted and laser-etched with its size. Also includes a black, wooden presentation/storage box, which includes a universal sizing chart, as well as a a matching calibrated True Size Aluminum Ring Stick.