1. Material: plastic, metal 2. Installation position: rear-view mirror cylindrical support frame, seat 3. Applicable mobile phone size: 4.7-6.1 inches 4. Features: retractable length, easy to use, fixed with screws, easy to install, stable and not easy to drop 5. Length: retractable to about 20cm 6. Weight: about 100g/piece 7. Packing size: about 12.5x6.5x5cm
