The inflatable mermaid swimming ring is made of high-quality PVC material, thick, soft and skin-friendly, durable, safe, and enjoy time on the water. The unique and interesting mermaid design attracts everyone's attention in the pool and makes your bathing fun more interesting. It is also the best photo prop. Small size:Outer ring diameter: 54 inches, inner ring diameter: 26 inches. Large size:Outer ring diameter: 33 inches, inner ring diameter: 72 inches. Easy to wipe, inflate/deflate. After use, just deflate it and fold it up for easy storage or carry it with you when needed. The mermaid floating inflatable raft in the adult pool will make you a superstar on the pool party and on the beach. Let you enjoy and relax in this wonderful moment, the beach, the water park, and the rafting.