This is a set of 6x30 Optional SC Hex Adapters. Do you want to upgrade your 6x30 SC Removable Hex Wheels to 14mm or 17mm Hex size? Or do you need 12mm ProTrac offset hexes for your truck? You came to the right place! This pack contains a full car set of 14mm, 17mm and 12mm ProTrac Hexes for your 6x30 SC Wheels. These hexes are made from High-strength, Durable DuPont Black Nylon Material and are built to take a beating.