The Oxballs Ringer donut ring is a thick jelly ring that gives your junk lift and pushes it out for a more pronounced bulge effect. Each ring is tight enough for just the right amount of squeeze but still comfortable enough for prolonged sexual activity. The Ringer is thicker, stronger, and more resilient then most other silicone rings. Made from their phthalate-free Flex TPR material, it stretches up to 5x its original size. Compatible with most water-based lubricants. Dimensions are: outside Diameter – 1.59″, Inside Diameter – 1″, thickness – 0.5″. 3-pack includes one in red, ice blue and black.