Feature 1[Independent Double gasbags]: Equipped with 2 inflation nozzles and 2 independent gasbags. Even if one of them is broken, the other can provide sufficient buoyancy, making it safer to use. 2[Easy to inflate and deflate]: The swimming buoy adopts an inflatable design. During use, you can blow in air directly from your mouth. When deflating, you only need to open the air nozzle to squeeze the air. 3[Highly Visible in Open Water]: Our swimming buoys are brightly colored and have high visibility. They are especially eye-catching in lakes, oceans and other open waters. It can help you avoid boats, surfers, kayaks, and motorboats. And it can also prevent dangerous marine animals from not coming. 4[Adjustable Belt]: The inflatable buoy is made of high-quality PVC, odorless, durable and long lasting. Comes with a waist belt, just wrap the belt around your waist and adjust it to be tight. One of the necessary equipment for swimming in open water. 5[Easy to Carry]: Can be folded into a compact size, easy to carry.SpecificationMaterial: environmentally friendly PVCColor: orange, fluorescent yellow, rose redSize: about 48*29cmPVC thickness: 0.35mmNumber of gasbags: 2pcsBlowing method: Blow directly with your mouthApplicable people: children, adultsApplicable scene: fitness and body, swimming and wadingBuoyancy: 8KG (only for one adult)Executive standard: QB/T 1557-1992Package List1 * Swimming BuoyNoteThis product is not a life-saving device. It is only used in shallow water under the supervision of adults. Please do not use it in deep sea, rapid current or areas with large waves. Do not touch sharp objects. Do not over-inflate.