1.one size fit all.

2.33g CO2 cylinder. it can be used one time, you should replace another one next time

3.Construction:waterproof nylon with 33g CO2 cylinder and single chamber

4.For seamen at work on vessels in port and river

5.Various of styles are available or as customers' request

6.Accessory: 2pcs reflective band and one rescue whistle

7.Our life jackets enjoy a high reputation both domestic and overseas

products index:

1.Flotage : ≥150N,  keep you above water

2.Weight≤0.9kg,   it is portable

3.Expand time≤5s, it is easily inflate
4.Floating time≥24h
5.After 24h, buoyancy loss ≤5%

6.Product validity:3 years

there are two kinds for you choose: one is automatic, the other one is manual 

Working principle of pneumatic:
Manual inflation: Before or after falling into the water, driving force of the rope to open the inflatable device, until the bar go not less than 90 degrees; When pricker broke the diaphragm of high-pressure gas cylinders, the high-pressure carbon dioxide gas break into the air bag and then buoyancy is happening.

Automatic inflation: After a life jacket falling into the water, the submerged automatic device to soften the water-sensitive components, firing pin stop loss, done to promote the firing pin spring punctured diaphragm seal carbon dioxide gas cylinder filled balloon buoyancy generated.
Inflated by mouth blown: Blowing nozzle is a one-way valve, after blowing it will be self-closed.