Compatibility and Protection: Specifically designed for Osmo Action 5 Pro, for Action 4, and for Action 3, this cage offers sturdy protection while enhancing your camera's functionalityUnhindered Access: The formfitting design ensures that all connection ports and the battery door remain easily accessible, allowing seamless operation without removing the cageVersatile Mounting Options: Equipped with magnetic quick release mounts for easy accessory attachment, along with a cold shoe mount on top and anti twists 1/4-20 threaded holes on the sides for additional mounting flexibilityConstruction: Made from aluminum alloy, this camera cage is both lightweight and sturdy, providing long term protection for your action cameraCompact Design: With dimensions of 8cmx5.4cmx3.1cm, this compact cage is easy to carry and integrate into your filming setup without adding unnecessary Specification: Material: Aluminum Alloy Size Chart: 8cmx5.4cmx3.1cm/3.15inchx2.13inchx1.22inch Package Includes: 1 Aluminium Alloy Case Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful online shopping!