Specification:1. The design of the carbon fiber dimension on the upper and lower arm of the bracket;2. The arm can be locked to prevent the folding of the arm to prevent falling the phone;3. Compatible with 4.7 ~ 6.8 -inch mobile phones.4. Applyable car handle pipe diameter: can be pinching the pipe diameter range of 18 ~ 36mm5. Product shape size: 147*90*123mm6. Material: ABS & PC+hardware+silicone