Feature 1MAIN PURPLE: This bracelet can prevent drowning, just use the hand lever to keep you on the water, so that you can get out of danger. 2FOR WATER SPORTS: Suitable for underwater swimming, fishing, yacht sightseeing, diving, sea surfing, boating and other water sports. 3: The gas bag has been tested to ensure good reliability, help you deal with accidents such as choking, cramping and fatigue. 4ADJUSTABLE SIZE: The swim lifesaving wrist strap is adjustable, suitable for wearing on the wrist or arm to meet the needs of more people. 5EASY OPERATION: When using the bracelet, gently pull the hand to inflate the gas bag and provide buoyancy, efficient and practical.Item Type: Lifesaving BraceletMaterial: ABSSize: Approx. 26 x 8cm / 10.2 x 3.1inWeight: Approx. 389-421g / 13.7-14.9ozPackage List1 Set Lifesaving Bracelet (4 Accessories in Total)Note1. The air cylinder shall be tightened and the cylinder cover shall be closed.2. Pull off the and note that it is not inflated at this time.3. The returns to its position, and then the rapid inflation begins.Remember to pull it once and inflate it for 2 seconds, and check whether the new cylinder has been replaced before each use when the is returned.