PURPOSE: To obtain a weatherstrip for the upper corner part of a center pillar in a hard-top car, which has no problem about stiffness and workability by constituting an extrusion molding, weatherstrip in such a way that an internal core can be taken out from an opening between a base part and a hollow sealing part when the hollow sealing part is opened.

CONSTITUTION: An extrusion molding weatherstrip 3 is constituted in such a way that it is opened widely to the extent that the internal core G of a molding weatherstrip 4 can be taken out from an opening F between a base part 3a and a hollow sealing part 3b, when the hollow sealing part 3b of the extrusion molding weatherstrip 3 is opened. A developing hollow sealing part 4b also serving as taking out the internal core continuing to the extrusion molding weatherstrip 3, is provided to the molding weatherstrip 4. When the hollow sealing part 3b/the hollow sealing part 4b are rotated downward and opened by using the base 3a/the can inside under edge in the base as a hinge shaft Q, the internal core G can easily be taken out.