It’s metal as fuck, bro. Stay HARD as steel with our Pinch Zero Ring. The weighted hug of a metal ring…with ZERO pinch. Our extra-wide Magno opening makes for the EASIEST on and off. Weighing in at half a pound, once you start headbanging, you’ll KNOW it’s there. - Depth 0.7 in. (17 mm) - Ring Inner Diameter 1.77 in. (45 mm) - Material Silicone/Iron