This is our newest gaming and automotive racing quick release adapter. After years of using our index ball bearing quick release, we have decided to bring you a tapered D shaped quick release with half the weight. This is ideal for drivers who need the convenience to get in and out of the car. It allows the steering wheel to go on only one way when you release the spring loaded female end. The D shaped quick release make for smoother operation and precise alignment. The 6 hole bolt pattern fits with all of our steering wheels and hub adapters. Also, they are SFI 42.1 approved!