Includes:
2 hollow hubs with 36 holes for 14 gauge spokes, chrome
Hub center hole fits 5/8" or 15mm diameter axle shaft (will not work with trike kit 870000 because the axle on the kit is 16mm)

NOTE:

Two 28.6mm or 1 1/8" outer diameter sealed bearings included one of the hubs, however the other hub has one sealed bearing and is missing one sealed bearing.  This set of hubs is sold as is no returns.  

Application:

The hubs slide onto an axle shaft.
Build your own wheels for a trike