BRIS 15.4 ft Inflatable Boat Inflatable Rescue & Dive Inflatable Raft Power Boat Main tube and bottom floor fabric : 2000 denier 1.2mm PVC Floor type : 12.5mm thickness aluminum floor and marine plywood transom for outboard motor Double layers of fabric at the bottom of the tubes, Three individual chambers Deep V-keel with rub-strake protection , Built-in oarlock for easy rowing Transom stainless "D" lifting rings, Eleven Interior tie down stainless steel D-rings, Two large tow stainless steel D-rings on bow, Two large tow stainless steel D-rings on rear tubes, Gas tank pad for securing the gas tank