Features: 1. Suitable for:The shock absorber is suitable for use with 143A, 146A, and 148A mobile phone holders. 2. Shock Absorber:Eliminate resonance, shock absorption and vibration prevention. 3. Reduce Frequency Vibration:Buffering external forces and reducing vibration amplitude. 4. Phone Protection:Filter high-frequency vibration to protect the phone; Steady photographing during riding, farewell to blurring. 5. Satisfaction Guarantee:We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly.. Material:ABS Color:black Size:as shown Package includes:1 x cycling bracket Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display.