Features: Light weights and Easy to carry. Suitable for swimming pool/beach/hot weather water parties.Make of PVC, which water resistant and not easy break or leakage, the soft makes it comfortable to wear.With double bladder for great flotation and adjustability for firmly fit.There is two leakproof inflation port on each armband. When inflating, just gently pinchs the bottom of the inflation port, then blow with your mouth / inflates with inflation tool. Suitable for kids, novices, and adults alike, these arm Rings make swimming easily and enjoy.Specifications: Component: PVCColor: Pink/YellowOuter Diameter: about 27cm/10.63inchInner Diameter: about 7cm/2.76inchPackage Includes: 1pair Swim Arm Floatienote: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.