Stay Hard Donut Rings Red from Blush Novelties. Enhance. Increase stamina and enjoy harder erections. Strength. Strong, tear resistant Elastomer. 2 pack. Includes 2 soft and stretchy cock rings. Wear one or both together! Peace of mind. Made from Thermoplastic Elastomers TPE. Contains no fragrances, phthalates or Latex. Size 0.7 inch inner diameter by 1.4 inches outer diameter each ring.