First i received my gasket and removed it from the shipping box. I placed it outside, flat on table in sun to regain its shape etc. just few hours. Then I removed old gasket by pulling on it out of the frame insert. Then placed each corner of new gasket in frame, followed by the rest.. works like a charm.. "Hint".. Once new gasket is placed and secure it does take about a day to fit the shape so freezer air will probably leak but dont worry give it time to shape itself..