Abstract: A razor including an inner tubular member formed with two opposite longitudinal slots of different length, a blade assembly fitted into the inner tubular member and including a first mounting element and a second mounting element engaged with the first mounting element, an intermediate tubular member enclosing the inner tubular member, an outer tubular member enclosing the intermediate tubular member and having at an inner bottom a protruded portion formed with a plurality of tenons adapted to engage the mortises of the inner tubular member, and a cap having an opening at a center and engageable with a top end of the intermediate tubular member, whereby the razor will be completely kept from dirt when not in use.