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 won?t break. They are extremely comfortable to wear, never harsh or scratchy and made with the sensual comfort of PF Blend. It is made with our industry-leading proprietary materials, which makes it a superior long lasting durable ring that is extremely comfortable to wear. The Ribbed Ring is made of PF Blend which is a mixture of Silicone and TPR and is available in black and clear. The Ribbed Ring is safe with water based lubes. This product is not compatible with latex products. Wash thoroughly with mild soap and water. Perfect Fit Brand Products are sold, and intended for use strictly as adult novelty toys for entertainment. They are not intended for medical use and have not been clinically tested. No medical claims are warranted or implied by the use of these products.