A lifting apparatus for a lift system is disclosed. Openings are located in the top and bottom sides of the levels for communication of the chambers of one level with chambers of adjacent levels when the levels are stacked. In another, silicon microstructures are used to case elastomeric replicas of obstacle arrays, the tops of which reversibly seal against a flat surface. The closure member includes a free first end and a second end coupled to the first end of the elongated clasp. The embroidery data producing device includes a synthesized outline data producing unit which produces data of a synthesized outline defining an outline of a synthesized area formed by synthesizing a part or all of a plurality of the areas and an underlying stitch sewing data producing unit which produces data of underlying stitch sewing based on the synthesized outline data. An adhesive layer is positioned on the foil layer, and a first photo-definable hydrogel membrane is positioned over the electrode layer and the adhesive layer.