Laser Cut from ¼” hot roll A36 plate, shipped burr free. We are currently stocking only the half rings, we used to call these our race versions to keep weight down. As vehicles have progressed more people are wheeling with smaller horsepower engines and weight has become more of a concern. These half rings designs are normally in stock and can ship same day in most instances. We have done a lot of custom work over the years and if you are planning your build and want something to tie your rig together we can accommodate. Normal lead time on custom work is 4 weeks. Please contact us for any custom requests.