【Lifetime Warranty】FANAUE aluminum arm lifetime warranty, if you have any problem, please feel free to contact us, If our FANAUE aluminum arm no longer performs as promised under normal use, we will happily replace it for you. | 【Compatible with RAM Mount B Size】This dual socket arm is compatible with RAM mount and any FANAUE B size 1 inch ball assembly,With a wide range of 25.4mm components, FANAUE offers a range of base, arm and bracket options to suit all your equipment mounting needs. | 【High-quality construction】The FANAUE Composite Double Socket Swivel Arm is made from durable aluminum, ensuring a long-lasting and reliable performance for your mounting needs.Overall arm length is 5.9 inches. Double ball joints provide multiple points of articulation. | 【Easy to Install】The FANAUE composite dual socket swivel arm is simple to install and can be quickly and easily attached to your existing RAM mounting clamp equipment positioned exactly where you want it. | 【Multipurpose use】Ideal for mounting smartphones, GPS devices, cameras, and other gadgets, the FANAUE DA-150PRO Composite Double Socket Swivel Arm is a versatile accessory for your vehicle, boat, bike, or any other mounting application.