Never mind those cheap flimsy cock rings that break after only a few uses! The Ribbed Ring is the new standard for superior long lasting durable cock rings that will not break. They are extremely comfortable to wear, never harsh or scratchy and made with the sensual comfort of PF Blend, which is a mixture of Silicone and TPR. The Ribbed Ring is safe with water based lubes. This product is not compatible with latex products.