The invention is an apparatus having first and second legs pivotable with respect one another about a pivot axis. The first and second legs pivot between a first position and a second position. In the first position, the first and second legs are substantially aligned with respect to one another and can be stored. In the second position, the first and second legs are transverse with respect to one another and can receive a bag. The apparatus also includes first and second incurvate portions defined by each of the first and second legs. The first and second incurvate portions are spaced from the pivot axis and from each other. The apparatus also includes first and second excurvate portions defined by each of the first and second legs. The first and second excurvate portions are substantially coplanar with the first and second incurvate portions of the respective leg and are spaced from said pivot axis and from each other. An opening of a bag can be received at the first and second excurvate portions and supported during filling.