Waterproof Dry Bag - The swimming buoy has a waterproof storage box separate from the inflatable air chamber. This allows you to carry valuables such as mobile phones, ID cards, wallets, keys, etc. with you.ADJUSTABLE BELT - The Adjustable Buckle Belt Fits Different Waist Sizes, It Easily Adjusts To The Waist Size You Want, Making It The Perfect Swimming Accessory For Anyone. Fits perfectly into any swimsuit or wetsuit. Perfect for swimmers, snorkelers,triathletes and more. PVC Material - The swimming buoy is made of high-quality eco-friendly PVC material, durable, not easy to cut, waterproof, tear-resistant, and friction-resistant. For your convenience, there is a strap on the swimming buoy.When inflated, it comfortably supports the weight of an adult. Ample air volume buoyancy guarantees swimming and you can grab floats in case you cramp or just need a break.Package Included:1 waterproof dry bagWUZHOU