• nylon
• Surfboard shark-fin:it is glued to both sides of the plate surface to assist the use of the central water splice,inflatable boat tail rudder
• Surfboard tail rudder:the water splitter of the seat board is glued to the back end of the reverse side of the board,inflatable boat tail rudder
• Inflatable boat tail rudder:made from nylon material for durable long time use,boat shark-fin
• Boat shark-fin:used for all kinds of inflatable surfboards,inflatable boat tail rudder
• Boat tail rudder:increase the stability and direction of the surf bar,inflatable boat tail rudder