Features: 1. Made of aluminum alloy, durable, not easy to fade and oxidize. 2. High grade gold plated surface, beautiful and not easy to scratch. 3. The underside is provided with shock absorber and slip rubber. 4. The damping rubber ring is detachable. 5. Installation method: It can be installed from the inside of the chassis, or it can be installed from the outside of the chassis with self tapping screws (for wooden materials, self tapping screws need to be self contained), or double sided adhesive can be used (purchased by customers). Specification: Material: aluminum alloy Surface treatment: Anodized blasting does not fade Diameter: 50mm / 2.0in High: 15mm / 0.6in Screw hole diameter: 4.5mm / 0.2in Weight: approx. 73g Package List: 1 * Feet Pad