Robert Sorby # 765/24 1" Diameter x 4-1/2" Long Stem Post for Modular Tool Rest System Modular tool rest system enables the turner to build up a collection of tool rests without going to great expense Made from precision ground, polished and hardened allow steel 1" diameter stem is 4-1/2 long Stems interface with 6 different rests: 4", 6" and 9", internal and external curves and a box platform Made in England by Robert Sorby