Self Rescue Bracelet Concept by Wu Xuexing, Zhu Linghui & Zhu Peizheng is an expanding flotation device that a swimmer could activate if they encounter difficulties in the water. The compressed air within this bracelet (as well as neckband) can be made for you to expand rapidly when the bracelet will be pulled. The pulling action breaks a new barrier between the compressed air chamber and the larger surrounding chamber. The compressed air rushes out of its chamber for you to rapidly expand the bracelet and also create a floatation unit. In its un-inflated form, the bracelet can be thin and light, and also will create minimal drag for the swimmer’s wrist.