US design universal dust proof strike to suit shoot size 16mm maximum. The plate is both adjustable by means of spanner wrench and removable, making it versatile for carpet, threshold, or concrete applications. With removable face plate for use with thresholds, and adjustable height for carpeted areas. Prevents dirt, dust and debris from clogging floor strikes. Compatible with Z003R, Z006R, Z004, Z005 and Z015. US26D satin chrome plated finish standard, other finishes to special order. Barrel 22mm diameter x 55mm depth. Faceplate 35mm x 73mm. Universal screw package included for all installations.