NOTE: 1. This item is PURELY a metal plate, which designed to work with magnetic mount. It's NOT a magnet. 2. Clean and dry the surface of your phone/ phone case before sticking the plate on your device. 3. Suggest you Mount the metal plate inside your phone case for beautiful design. 4. The decorative metal plate with adhesive cannot not be used twice after removal.Features: Great to use with all 3.5-6" cellphones. They also work through a thin case. Hold your GPS or tablets more stable with the rectangular metal plate or use two metal plates. Safely protect your devices or hands from scratching with the rounded edge. Easy to attach and remove without a hassle.Specification: 1. Material: Rust-Free Iron 2. Color: Black 3. Dimension:Rectangle - 1.8"x2.6"/45x65mm (4Pcs) ; Round one 's diameter - 1.6"/40mm ( 4Pcs)Package Includes:4xRectangular Adhesive metal plates. 4xRound Adhesive metal plates.