keep the contact surface clean and flat. Suction cup camera mount is perfect for car windshield, body, glassware, porcelain tile etc. It's not recommended for car dashboard and plexiglass. Keep the contact surface clean and flat, press the pressure lock and the suction cup bracket will work. Not recommend for that. Only recommended for non-impact activities, not for surfing, snowboarding or other high-impact sports. This mount be used to mount a phone and most action cameras, only need to buy the appropriate connector type for the camera or mobile phone.