CRL 5/8" (16 mm) Wide Mirror Clips are designed for 1/4" (6 mm) mirror. They simplify the process of installing mirrors by using the One-Piece Clip on the bottom and the Two-Piece Clip on top for a quick and easy installation. The Upper Clip is removable by unscrewing the top screw. Supplied with #6 x 3/4" (19 mm) Flat Head Wood Screws and Plastic Anchors. Set includes two Upper and two Lower Clips.