Overall Arm Length Measurement - 2" Ball Center to Ball Center Measurement - 1.3" Ultra Short Reach: This is Tackform's shortest double socket arm. The single knob design allows you to reposition your device quickly and easily, completely locking up movement for zero chance of slippage under its intended use. Color Swap Compatible: Tackform offers a wide range of anodized billet aluminum knobs. This DuraLock arm is compatible with Tackform's DuraLock knobs, allowing you to customize your setup to match your vehicle. Chrome plated knob included. Tackform 20 Series: Specifically designed for compatibility with Tackform’s 20 Series Platform, revolving around the 20mm ball and socket system. While compatible with other 20mm products, our parts stand out for their tested durability and engineered load capacities, featuring a safety factor not guaranteed by other manufacturers. Please Note: Not suitable for 25.4mm / 1” / B-Sized balls.
