Inflatable boat a)Heavy duty PVC,reinforced material b)heat welding,no air leak c)4+1 air chamber d)3 year warranty ... inflatable boat for 4 passengers 4 seaters inflatble boat,for fishing,rowing,or racing Suggest dimension as our ... meet the CE,RoHs,EN71, SGS, and EN14960 certifications. inflatable boat for 4 passengers