1. Telescopic fixed valve, pull out the inner rod, rotate clockwise and twist tightly to 2. Rotate 180 degrees up and down, 360 degrees left and right 3. Aluminum alloy material, strong and durable 4. Universal hole, easy to install 5. Scope of application: indoor and outdoor are available 6. Material: aluminum alloy 7. Tube diameter: inner tube about 37mm, outer tube about 45mm 8. Aperture: about 8 mm 9. Note: shipment does not include the camera
