how many times you filled your car`s tank and a terrible smell invaded your split /oval cockpit ?? ** don`t let GASOLINE impregnate your expensive upholstery again !! **original style , GERMAN MADE MATERIAL , rubberized cork gas tank cap seals , 2 units per tank , one seals against the tank , the other seals against the cap and both slips between them when you put on or take the cap away . ** pure rubber seals don`t work as they should , they ussually prevent you from fully close the gas cap . ** $15 plus shipping