Its pure metal, my friend. Stay rock solid with our Pinch Zero Ring. Experience the weighted embrace of a metal ring with ZERO pinch. Our extra-wide Magno opening ensures the EASIEST on and off. Weighing in at half a pound, once you start moving, youll definitely feel it. - Depth 0.7 in. (17 mm) - Ring Inner Diameter 1.77 in. (45 mm) - Material Silicone/Iron
