The ALZO Car Camera Mount securely attaches a professional camera to smooth vehicle glass and metal surfaces. This device is used to mount production video cameras and DSLRs up to 15 lbs in total weight, for moving vehicle shots. The accessory hardware of extender pins and the ALZO flex arm allows for many installed automobile locations and camera orientations including low door mounting. The 1/4 inch x 20 thread holes on the triangle plate are pressed steel threads for security and long life. The inclusion of 1/4 in pass holes allows for more mounting options. The three ALZO pump action suction mounts include a red ring suction-loss visual indicator that shows when the suction is weakening. We always recommend using a safety line that securely attaches to a part of the vehicle and to the camera body.