Swim Circle Size: The outer size of the swim circle is 108cm, the inner size is 42cm, and the thickness is 0.25mm. It is suitable for adults who are just starting to learn to swim. Unique design: Our inflatable swimming ring adopts watermelon and donut design, with cute shape and bright colors, adding more fun to your water activities. Safe and durable material: This swimming buoy is made of safe and eco-friendly PVC, which is soft and non-slip, odorless, extrusion and tear resistant. Easy to inflate and portable: Thanks to the improved valve, the swimming ring can be easily inflated, reducing the possibility of air leakage. You can deflate it when you don't use it, fold it up and carry it, it doesn't take up space and can be used repeatedly. An ideal summer toy: This inflatable swim ring is perfect for a summer pool carnival, beach or theme party. It is not only a tool for beginner swimmers, but also a decorative item for any summer party. The swimming ring adds fun to summer and lets you enjoy a cool summer with your family.