The TRUE-SIZE precision calibrated ring stick delivers consistent, dependable results from start to finish when sizing rings. Whether you are designing new rings or resizing existing rings, this set reduces costly errors that can occur between measuring the size needed and producing that size in the end product--especially when partnered with the calibrated TRUE-SIZE finger gauge set and steel mandrel (available separately). This 12-1/2" long aluminum ring stick is clearly etched in quarter sizes from 1-16 with a handy sizing gauge that makes it easy to remove or insert exactly the amount of metal necessary when sizing up or down.