Sturdy & Durable: Phone stand arm,base pedestal and all ball joints are aluminum alloy construction,sturdy,durable,rust-proof and anti-corrosive,after some testing result,it shows withstand strong vibrations,high and low temperatures,as well as daily wear and tear,will not be damaged for long-term using easily. Flexible Adjustable:Two 0.885 inch ball joints can 180°rotation by twisting joint knob freedom,adjusting to angle of phone bracket arm,another one 0.67 inch ball joint be used to adjust angle of phone clip,it can 360°rotation to capture great viewing for customer. Secure & Firm:Phone mount arm length is 7.3 inch,it can load 2 lbs weight,phone clip equipped with built-in anti-skid rubber pad,reduce scratches and hold phone firmly,phone doesn't fall off even if bumpy and vibrating condition driving. Drilling Base: Base pedestal diameter is 1.57 inch and design to 5 screw holes,due to delicate and mini, it's great for fixing in the truck / car / lorry / van /