The Original Kilter Board Hold Sets come with both the bolt-on and screw-on holds.
The Home Wall Kilter Board Hold Sets have 3 options. Auxiliary, Mainline, and Fullride.
The Fullride sets are a combination of both the Auxiliary set and the Mainline set for the given size.
The sizes listed refer to the "upper" section of the kilter board. The kickboard is measured separately.