Lug Covers with Knockoff Spinner and Threaded Adapters compatible with Rocket Racing Wheels' Fire and Solid Series Wheels. Requires open end conical seat lugs with 3/4" hex to avoid clearance issue. Open End Lugs Sold Separately. The lug cover is held on by threaded adapter that locks into the o-ring seat and pair of vintage knockoffs. The adapters and knockoff kit includes extended threaded adapter and Polished Vintage Knockoff, 1 pair of lug covers. Choose from Polished or Painted Lug Covers and Choose from Flat or Deep Angle knockoffs.