Gasket and washing machine using the same

Disclosed is a drum type washing machine having a gasket blocking a gap between a laundry entrance and a tub to prevent particles from being put therein. The present invention includes a cabinet having a first opening through which a laundry is put in, a tub having a second opening at a tub front side, a drum provided in the tub to have a third opening at a drum front side corresponding to the second opening, a rotation mans having a rotational shaft penetrating a rear side of the tub to be connected to the drum, a door opening/closing the first opening, and a gasket blocking a gap between the first and second openings to prevent leakage of water and blocking a gap between the second and third openings to prevent a particle from being put between the tub and the drum.