To attain insertion of a gasket into a groove of a door and coming-off prevention of the gasket from the groove by a method wherein a fin is arranged at the central part of an anchor section of the gasket.

A door 17 of a refrigerator is provided with a gasket 21 for use in attracting both a main body 18 of the door formed by an outer plate 6 and an inner plate 7 as well as a foamed material 8 filled between these plates, and an outer box 2 at the main body 1 of the refrigerator by a magnet 20 inserted into a magnet recess 19. The recess having the gasket 21 inserted therein is constituted by an integral-formed groove 22, an anchor section 23 of the gasket 21 inserted into the groove 22 and fins 24 arranged at the central lateral portions of the anchor section 23. Since there are no fins at the extremity end of the anchor section, the gasket 21 can be easily inserted into the groove 22 up to the fins arranged at the central portion when the gasket 21 is inserted into the grove 22, resulting in that a certain strength can be applied to the anchor section 23 and so its subsequent inserting characteristic can be improved. In addition, variation of an inner size of the element can be absorbed by the fins and then the gasket 21 does not come off from the groove.