Dewhel Universal Steering Wheel Quick Release Hub Adapter Snap Off For Momo Sparco Nrg Omp Color Red Material: Made of aircraft grade aluminum Size: 84mm / 3.31" (diameter ) x 68mm / 2.68" (overall height) Fits any 6 Hole Hub adapters with a 70mm/2.76" bolt pattern Fits any 6 Hole Hub steering wheels with a 70mm/2.76" bolt pattern fit ALL aftermarket steering wheels (NRG, MOMO, SPARCO, etc).