0000", Stainless, OD 1 3/4" The addition of a keyway allows for use in positive drive applications as a shaft collar or for extra torque capacity when used as a rigid coupling.
The footbed has an excellent compression-set. For even more comfort, the PRO-CELL footbed has an extra-large integrated energy return heel plug. Polishable Dress Leather Chukka,10WI The system features a removable PU footbed. The upper is full-grain leather and takes a nice spit-shine.