Polished Chrome Finish Plastic Lining Helps Protect Clips and Prevent Scratches in Mirror Set of Four Clips CRL's Plastic Lined Mirror Mounting Clips are designed to allow maximum air circulation behind the mirror and accommodate uneven wall surfaces. The upper clips are spring loaded to expand over the mirror top edge as the mirror is being installed and then returns to a position where the mirror is held firmly against the wall. The lower clips support weight of the mirror. A plastic liner inside each clip protects and cushions the mirror. Color: Polished Chrome Minimum Order: 1 package Set of four per package.