1. Zinc alloy material, wear-resistant, anti-oxidation, no deformation 2. One pull to unfold, free your hands, it is more convenient to watch videos 3. 0-90 degree free adjustment, find your suitable angle 4. A variety of colors to choose from 5. The smooth phone case can also be pasted, with strong stickiness and not easy to drop 6. Size: about 20.23x13.46x3.4mm