Description <br> Features: Enhances your mounting setup with this 17mm to 17mm double ball head adapter featuring a flexible aluminum , designed for seamless integration with industry standard double ball socket arms in car mounts, bike phone holders, and navigation systems. <br> Crafted from plastic and light weight aluminum alloy, this 360 rotatable adapter offer four adjustable lengths (22cm/32cm/42cm/52cm) and angles customization for stable device positioning during dynamic movements. <br> Ideal for cyclists, motorcyclists, and live stream creators requiring versatile mounting solution, it ensures secure attachment for smartphones, tablets, and cameras during outdoor adventures or mobile broadcasting. <br> Optimize viewing angles while navigating city streets, recording action footage, or conducting live streaming – its bendable structure maintains firm grips even on bumpy roads or vibrating vehicle surfaces. <br> As a must have extension accessory for map holders, bicycles phone mounts, and car dashboard支架, this adapter delivers multiple device support across commuting, travel vloggings, and handfree navigation scenarios. <br> <br> Specifications: Component: Plastic + Aluminum Alloy <br> Length: 22cm/8.66,32cm/12.6,42cm/16.54,52cm/20.47 <br> Ball head diameter: 17mm <br> <br> Package Includes: 1Piece 17mm to 17mm Extension Rod <br> <br> note: Please allow 1mm errors due to manual measurement. <br> Due to the differences between different monitors, the picture may not reflect the actual color of the item. <br>