This is Vanquish Brass SLW 600 Wheel Hub 2 pcs Gold.
For: SLW, OMF, KMC, Method, and SSZ style wheels
Made from brass in the USA
Sold in pairs
Increments of 1/8 of an inch
Uses six 4-40 screws to attach hub to wheels
Vanquish Brass SLW 600 Wheel Hub (2 pcs)