Eyson produced and developed life jacket since 2011,Our products are obtained the certificate of CCS,CE,EC,SOLAS.Our inflatable life jacket expand time is within 5 second which is fastest around word.Of course, it is safest because we test twice and our all client do not complain our quality.Our life jackets are valid for 3 yearsAnd our products are very popular on Amazon in USA,we sale 15000 pcs every month on Amazon in USA and Japan.