This holder links items together with a pair of surprisingly strong cam-operated suction pads. Although it was designed as a vehicle window mount for mobile devices, its gripping power and flexibility make it convenient for many other uses where you need a firm connection between two smooth surfaces.
The suction pads firmly attach to any flat non-porous surface and can be easily released and repositioned with the flip of a lever. An arm with two ball joints lets you adjust the angle anywhere in a 180° arc and rotate it in a full circle. Two thumbscrews can be tightened to support heavy objects without sagging. A versatile mount.