1. Material: aluminum alloy 2. Applicable mobile phone size: 4-6.5 inch mobile phone 3. Dimensions: 10.4 x 3.57 x 1.29 cm 4. Alloy metal material, sturdy and durable 5. Upgrade silicone plug, easy to install 6. Anti-vibration foam design to prevent noise 7. Small size, does not take up space
