Premium Material: The inflatable swimming ring is very strong and can easily carry adults or children. Made of high-density environmentally friendly PVC material, skin-friendly, odor-free,heavy duty, more durable, scratch, press resistant and leakage prevention. The built-in protective air lock can prevent outgassing and provide safer protection. .Size: This inflatable pool floats for kids, before inflatable it inner diameter is is 7.1 inches (18cm),outside diameter is 20.1 inches(53cm), after inflatable, inner diameter is 8.7 inches (22cm), outside diameter is 19.7 inches(50cm).suit for 2-4 years old (Under 30 kg). .Application: Suitable for the ocean, lake, river, or pool. Perfect for relaxing, chatting, napping or just floating around. .Summer Fun: Supply for kids summer fun. With its unique design will add more fun and color to your summer pool parties or beach getaways. .