🎭【lifetime warranty】This double socket arm provides lifetime warranty, if you have any questions, please feel free to contact us, we will provide you with the best solution within 24h. Double socket arm is specially for bike motorcycle phone mount designed connection accessories,can freely match the components with 1" ball head according to use needs, it‘s a great Christmas gift for your husband, father, son or friend, bring them the surprise and fun of assembling bicycle phone holder. | 🎭【Compatible RAM mounts B size】This double socket arm is compatible RAM mounts and FANAUE any B size 1" ball assembly, accommodates all industry standard B size / 1" / 25.4mm ball adapter, can be well extensions to connect to your motorcycle bike phone holder, suitable for variety of scenarios, such as bicycle、motorcycle、scooter、baby carriage、shopping cart and other equipment phone mount、sports camera mount、GPS holder installation, multi-purpose enjoy more convenient cycling trip. | 🎭【Excellent quality】High-strength double socket arm is made of aluminum alloy, the surface is treated with III stage anodizing, more smooth and wear-resistant and not easy to rust, with durability and reliability in the most demanding environments, long service life is not easy to damage, solve the frequent replacement of phone holder parts troubles, is motorcycle phone mount/bicycle phone holder/kayak phone mount/ball mount/gps vehicle mounts good choice for long-term use. | 🎭【Powerful Features】Double socket arm is length of 61mm lightweight of only 70.5g, maximum extensions to connect different components, Connecting ball head section can be 360° rotated, freedom to adjust the smartphone horizontal or vertical orientation, just use double socket arm packaging included wrench to adjust the anti-theft knob quickly complete the installation, anti-theft knob key can be hung on the key and carried with you, easily deal with the complex disassembly environment. | 🎭【Anti-theft and anti-loose】Double socket arm usually consists of two interconnected arms, spring device to keep the arm seat open, through safety knob to adjust the tightness of phone mounts, mechanical structure locking solid is not easy to loosen, ensure the stability of bike motorcycle phone holder, anti-theft knob damping design requires special anti-theft key to open, reduce the probability of losing the motorcycle accessories, so that your riding trip is more safe and reliable.