Extruded Rubber made Door Seal provides better sealing surface area, hold up better and remain more pliable for a better seal and a solid sound when closing doors. The Door Seal is made using quality grade natural rubber, EPDM rubber, synthetic rubber, nitrile rubber, neoprene rubber and silicone rubber which ensure hassle free performance. The Door Seal is completely non toxic and has high tensile strength. Extruded Rubber made Door Seal is flexible but strong and requires zero maintenance.