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Internal forcing gecko, comprising: a tubular sleeve and an insert, the tubular sleeve having a first end and an expandable second end, the sleeve comprising one or more indicating surfaces offset from the axis of the sleeve along the first end; The insert can be inserted into the sleeve so that when the insert is pushed into the installation position in the sleeve, the second end expands and the installation tool interacts with the first end to provide visual indication of the inwardly forced gecko engagement to the workpiece due to differences in appearance from one or more indicator surfaces. When the insert is pushed into the installation position of the sleeve, the second end expands and the installation tool interacts with the first end, thus providing visual indication of the inwardly forced gecko joining to the workpiece through differences in appearance from one or more indicator surfaces. In addition, the retaining element is positioned in the sleeve to prevent the insertion element from exiting and in some cases to restrict the movement of the insertion element, thereby reducing noise related to collisions between the sleeve and the insertion element.