Features:The backpack is suitable for beach, camping, rafting and other waterproof purposes. The shoulder strap is switched to a belt, and full of air is a standard swimming float. With double airbags, it is safer. With buoyancy, you can rest you are tired. At the same time, it reminds passing personnel and boats.Specification: Name: Three-layer Double-airbag Swim Buoy Specification: 28LTile size: about 36*72CM/14.17*28.34inch Buoyancy: about 12KGWeight: about 600gFabric: nylon cloth + environmental protection PVCGas nozzle: Octagonal spiral gas nozzleColor: fluorescent orange Packing List:Swimming Float*1Belt*1