Bright Chrome. The ABLOY EA280 concealed door loop is a lead cover that enables the unbroken transfer of wires between the frame and the door for doors that open up to 120 degrees. It is suitable for wire bundles up to 7.5mm diameter and is totally hidden when the door is closed.. Suitable where the distance from the hinge pin to the door frame is below 20mm. Suits wire bundle with maximum diameter of 7.5mm. Not suitable for use on centrally pivoted doors. Bright chrome finish