Abstract: Top-down storage vessels can be stably supported on a base portion opposite a top portion defining an opening. Top-down storage vessels can be stably supported on a closure coupled with the top portion.

Abstract: A container closure according to the invention can have a top with an opening that has a skirt extending downwardly around the circumference of the top and defining an interior region of the closure. Within the interior region is a shelf positioned below the opening and having a shelf edge attached to the interior of the skirt, a curved portion sloping from the shelf toward the top, and a curved edge in the curved portion. The curved edge, together with the top, defines a channel and the shelf, skirt and top define a compartment in the interior region of the closure. The shelf can include a lip extending from the curved portion of the shelf into the compartment. The shelf can be formed from is a separate component from the top and skirt. The compartment is dimensioned to contain a predetermined amount of a substance to be dispensed from the container. The shelf can extend across about 50% of the interior region of the closure. The closure can be made by injection molding of two separate pieces.