1This is a 1/2 inch polished billet aluminum steering wheel spacer with CNC machined 3.5 inches OD 2Function as a washer to elevate the steering wheel hub and provide a comfortable driving 3It is mounted between the steering wheel and steering wheel adapter, so please note it is not a steering wheel adapter 4Made from aluminium alloy, it is of high quality and durable in using 5This spacer fits for most vehicle steering wheels and hubs, such as for 6 hole Grant, Momo, Forever Sharp, Superior, and many 6 hole steering wheels measured 2.75Features: 1. This is a 1/2 inch polished billet aluminum steering wheel spacer with CNC machined3.5 inches OD. 2. Function as a washer to elevate the steering wheel hub and provide a comfortable driving. 3. Made from aluminium alloy, it is of high quality and durable in using. 4. It is mounted between the steering wheel and steering wheel adapter, so please note it is not a steering wheel adapter. 5.This spacer fits for most vehicle steering wheels and hubs, such as for 6 hole Grant, Momo, Forever Sharp, Superior, and many 6 hole steering wheels measured 2.75" or 70mm BC OR 1.375"or 35mm from center to each of the 6 holes, and also fit for Nardi 6 hole wheels with 74mm BC. Specifications: Material: Aluminium Alloy Color: Black, Silver(optional) Size(Dia. x H): 89 x 13mm(3.5'' x 1/2") Package Weight: approx. 165g Fitment: Universal for most vehicle steering wheels and hubs Package Included: 1 xWheel Spacer with 9 Screws Notes: Easy to install, but professional installation is highly recommended.