Features: This 17mm ball mount extension adapter features 360 degree rotation and double adjustable joints, crafted from aircraft grade aluminum for vibration resistant stability during off roading adventure. Its 13cm extendable rod with rotation ball ends enables precise angle adjustment, while the durability construction ensures compatibilities with dashboard/vent mounts across vehicle. Ideal for car owners, delivery driver, and outdoor content creators needing flexible device positioning for navigation cameras or live streaming setups. Secure mounts smartphones/tablets in ruggedly terrains, transforms vent/dashboard holders into multiple angle rigs for dashcam monitoring, or handfree video recording. The universal 17mm joint seamlessly integrates with magnetic phone grips, suction cup bases, offering 180° tilts adjustment for glarefrees screen visibilities. Specifications: Component:Plastic Length: Approx.13cm/5.12inch Ball Head:17mm Color:Black Package Includes: 1 Set 17mm Ball Joint Adapter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.