Overview: The throwing inflation aid float ring is convenient to carry and can be automatically inflated for assistance. A quick aid aid for landers Assisters throw this unit around the water at the shore or in the ship to detect water when landing and automatically inflate to save the waterer. Various types can be used for a variety of occasions, including ships, harbors, swimming pools, and banks. Note: This product has a buoyancy function on the surface of the water, but it is not a guarantee of the safety of your life. Please be aware that this product will expand completely and produce buoyancy. This product has a temperature of over 30°F (10°C) and has the fastest response speed. When the water temperature reaches 0℃, the reaction speed will be a little slower. When the water temperature reaches -10℃, the reaction time is twice as normal. Carbonated gas cylinder is a high pressure gas cylinder. Keep out of reach of children. Please do not use it again if the inflation device is activated. Once activated, the gas inside the carbonic canister will be disappeared and cannot be reused. In this case, please purchase an application kit and replace it before use. Please remove items that may damage the air chamber before wearing. protruding or sharp objects (brooch, ballpoint pen, safety pins, etc.) It may damage the air chamber and insufficient use. After inflating, please fully deflate the air chamber. If there is still air in the air chamber, it may cause the air chamber to burst. Please keep the owner responsible maintenance of the inflatable flotation device. We also recommend periodic inspection once a year. Please do not modify the inflatable flotation device. It may lose its function as an inflatable flotation device. For your safety, please replace spools, gas cylinders, and safety pins after 1 year of purchase. Please do not store this product in places with high humidity, rain, locations exposed to direct sunlight, light sources, and places exposed to chemicals, solvents, oils, high temperatures such as heat sources, and other places that are harmful to the groin. If the unit gets dirty, do not machine wash, tumble dry or iron. Damp a soft towel with water and remove the dirty part. Do not store for long periods of time in the trunk or in the car. This may cause damage or deterioration.