This action camera mount can be used with small rail diameter of 0.3 "-0.8" (0.8-2.2cm), suitable for installation on round rearview mirrors of motorcycle scooters to solve the problem of some scooter handlebars not being able to install mounts. Made of aluminum alloy, sturdy and durable, and can maintain stability even on rugged mountain roads. Standard 1/4 inch screw interface + tripod adapter, suitable for most sports cameras.