Wheel boss designed to enhance ergonomics of race mini driver positioning. Bringing the steering wheel closer and enabling the driver to have total control. You drive the car, not the car drive you! CNC Made from high quality HE30TF aluminium, to suit Sparco type steering wheels. If you want to a and Moto Lita type steering wheels, please contcat us. Bolts have been increased to M6 so steering wheel may require drilling.