A diaphragm for a container assembly for dispensing products such as wipes or sheets, or collecting and/or storing products, including waste products. The container assembly has diaphragm with a central aperture and at least one petal. The diaphragm is a portion of the lid or the container. The aperture allows a user to insert one or more fingers (or hand) to pull the first sheet out or alternatively, deposit an item into the container. The diaphragm has one or more slits separating the outer periphery of the diaphragm from portions of the petals, thereby reducing the force required to deflect the diaphragm.