Product details:

Machined from 6061 aluminum, they are designed for use on all GT 3-bolt steering wheels and most standard 3-bolt type steering wheels. They measure 3 in. in diameter with a 1.5 in. height and are secured using a unique O-ring concept to ensure that the horn button doesn't "pop off" during use. They come available in different finishes, engraved, or with color emblems.