1、Made of premium materials, lightweight, portable and durable 2、Immediate air inflation, with buoyancy up to 100kg, wastes no time in saving life 3、With a compass and whistle for survival 4、Gas bottle and air bag storage box for reuse 5、Suitable for swimming, diving, surfing, etc Description: Made of premium materials, the air bag is lightweight, portable and durable. Only one touch of the handle, the air bag would pop out and inflate in a second to save life. When you are floating in the water, the compass would help you  figure out the direction and the whistle arise people's notice for survival. There is a box that store the air bag, and two gas bottle can be replaced for use in turn, the bracelet is reusable and convenient, a must for people who is fond of activities relative to water, swimming, diving, surfing, etc. Features: 1. Made of premium materials, lightweight, portable and durable. 2. Immediate air inflation, with buoyancy up to 100kg, wastes no time in saving life. 3. With a compass and whistle for survival. 4. Gas bottle and air bag storage box for reuse. 5. Suitable for swimming, diving, surfing, etc. Specification: Materials: PVC & PP & TPU & Nylon Buoyancy: Approx. 100 kg / 220 lb Weight: Approx. 436 g Package Included: 1 * Anti Drowning Bracelet 2 * Gas Bottle 1 * Compass 1 * Whistle 1 * User Manual