The present invention discloses a set of equipment which comprises an extended and biologically compatible flexible support plate. The support plate comprises the following components: at least a series of holes which extend from a bottom part to a top part and are basically positioned adjacently with a first relative edge and a second relative edge of the support plate a bent surface which extends from a surface of a base part of the support plate to the top part a propulsion extension part which is basically positioned at a center line of the bent surface and a releasable locking mechanism which is positioned along a vertical axis of the bent surface adjacently with the extension part. Therefore, the releasable fixing mechanism which positions first equipment and second equipment for contacting with the skin at the edge or adjacent part of opposite wounds and inserts the propulsion extension part of the first equipment into the second equipment facilitates skin extension, wound edge approaching, wound closing or combination thereof. The invention also discloses a method for promoting skin extension, wound edge approaching or wound closing in an object, and an external member which comprises wound closing equipment and at least one propulsion extension part.