The Single Pivot Arm is a discreet option when looking to achieve a small amount of clearance from the BASE as well as a multitude of angles to mount your smartphone. Easily adjustable, the ball of the Single Pivot Arm rotates 90 degrees vertically & 360 degrees horizontally. * 1 x Single Pivot Arm * 1 x 3mm Hex Key The Single Pivot Arm is made from tough, nylon construct. The outside diameter of the tightening nut is 40mm (1.57") & it stands at 45.5mm (1.8") tall. The Quad Lock Single Pivot Arm is compatible with all Quad Lock 360 Bases & Heads. It is also compatible with the following Quad Lock mounts. * Motorcycle Handlebar Mount * Motorcycle / Scooter Mirror Mount Article: Quad Lock 360 Single Pivot Arm