The three-piece design includes a bolt-on tower, dimple plate and wing nut. The wing nut spins onto the machined tower and over the dimple plate for an authentic functional appearance. Wing nuts are offered in standard or low-profile versions. Smooth, dimpled or swirled dimple plates may be specified to suit your application.

The two-piece design uses a flange plate held in place with lug nuts, but features a one-piece dimple plate/spinner secured to the flange plate with an o-ring.