The 8" spinner works well on the IVO Patriot, GSC, and the Warp Drive machined. For the former two, the spinner hides the hub and only the blades protrude. For the Warp Drive machined shown here, the openings must be cut out square to accommodate the ends of the hub.
Dimensions (inches): W 8.375 x L 6.875 x D 2.375