the use of the wide temperature (-40-+120) compound EPDM compact and sponge including unique metal fixture and the tongue-shaped clasp seal the door with the door flange firmly to avoid dust, water& air to leak inside the cabin two kinds is available: sponge bulb and Dense Rubber with Flexible steel wire core Sponge bulb and Dense Rubber with flexible segmented steel core Application: some kinds of auto ,vehicle, yachts ,cabinet 50m/roll ,100m/ctn