●Exhaust gasket with ring prevents failure between gasket layers and gasket blowing out. ●Easy to install and adjust, universal attachment fits up to 12 mm or 1/2 inch screws. ●Made of wear-resistant, impact-resistant, scratch-resistant, dust-proof and colourfast material. ●Excellent sealing effect, seal perfectly every time by creating a tight, leak-proof seal by using a plated O-ing design that lasts. ●Perfect replacement for the old or broken one, perfect for your car exhaust pipe.