LIFETIME WARRANTY:This GPS vehicle mount comes with a lifetime warranty. The strong and sturdy aluminum alloy construction ensures durability for different environments. Feel free to reach out to us with any questions or concerns, and we'll be happy to assist you. 20MM MOUNTING SYSTEM：securely attach this mounting arm assembly to any of our Bulletpoint Mounting Solutions bases with 20mm balls or 3rd party 20mm ball mounts (0.78 inches).and freely match them according to your needs. HIGH-QUALITY COMSTRUCTION：Aluminum 20mm Ball Head Double Socket Arm is made from durable aluminum, ensuring a long-lasting and reliable performance for your mounting needs. ADJUSTABLE SWIVEL ： With an overall length of 15 cm, the double socket swivel arm offers a wide range of adjustability, allowing you to position your device at the perfect angle for optimal viewing and accessibility. MULTIPURPOSE USE ： Smartphones, GPS devices, cameras, and other gadgets, the FANAUE DA-150M Composite Double Socket Swivel Arm is a versatile accessory for your vehicle, FANAUE 20mm Ball Head Double Socket Arm, 5.9" Aluminum Mounting Arm Dual 20mm Socket Ends - for All Industry Standard 20mm Ball Joints, adapters, and mounts (DA-150M)