Equipped with double airbag and double-layer liner design, which provides double buoyancy. Protecting your children from the risk of tipping over and slipping out. Adjustable safety buckle ensure your children's maximum Comfort and they are NOT easy to unlock it when playing. Recommended age: over 3 years old. Full surround design- Surround arm design makes kids life vests easy to wear, also prevents it from falling off easily, offers all around protection for the kids. The ergonomic design allows your children quicker to adapt to the condition in water, keep balance when swimming. Safety Material \u0026 High Comfort- This Inflatable Pool Floats is made of high quality eco-friendly PVC materials, which thickness is 0.7mm, thicker than most swim rings in the market for durability. The surface of our swimming vest is smooth and burr-free, makes it soft and no harm for kids. Widely Used \u0026 Perfect Gifts- Swim arm bands is perfectly-sized for kids of all ages.Our portable float tube with compact design, which is easy to inflate and fold, widely used in bathe, swimming pool, beach, seaside, and so on. This safety swimming ring is a perfect gift to kids on the summer day.