... to use,small in size,apply to all kinds of marine worker & personal life-saving The Specification of the Inflatable Life ... to use,small in size,apply to all kinds Of marine worker life-saving,also for personal protection.Detailed information:1 ... : -30°C~+65°C,when in water,face should have a 400 with the water level5.Validity: Three years6.Packing List ...