This door gasket assembly is for the left refrigerator door. The gasket attaches on the inner door panel to create a seal around the door to keep the cool air inside and avoid the warm air from entering. If your gasket is torn or no longer sealing the door it will need to be replaced. This gasket is gray in color, made of rubber and measures 18” x 40”. To smooth the creases and folds in the new gasket, soak it in warm water and let it dry. You can also try carefully warming it with a hair dryer or heat on a low setting, but be careful not to melt the gasket. This is a genuine OEM part.