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