Additional Mount Metal Plates with Adhesive for Magnetic Phone Mounts Pack 2 Rectangle + 2 Round (Universal - Compatible with ALL Magnetic and Cradle Less mounts) **Important - No Phone Holder Included, just plates**COMPATIBLE with most magnetic phone mounts to provide hands-free use of your phone for calls and GPS guidance EASILY APPLIES with strong 3M adhesive backing. Simply peel off the backing and press onto any brand of smart phone ULTRA-THIN PLATE fits under your phones decorative case so as not to detract from its appearance ADHERES TO SMOOTH PHONE CASES to ensure the future trade-in value of your device TWO PAIR of magnetic plates include two 1.5 round plates and two 2.5 x 1.75 plates to accommodate your magnetic holder