HUJ C-ring is our take on a basic ring most guys will want to use and use often. HUJ is a c-ring and/or ball ring. They can be used multiple wasy, or more than one at a time. HUJ C-ring has a groove inside the ring that flattens out when worn, this keeps the ring in place and keeps a bit of lube between the ring and wearer. We design our rings with a flat inner opening, this keeps he ring from rolling so it won't snag or pinch. MATERIAL: plus silicone - TPR/siliconeblend DIMENSIONS: Width:2" Height:2" Depth:.75" Outercircumference:6" InnerCircumference:3"