Arkon Robust Clamp Mount with Security Knob - 4-Hole AMPS Compatible

The Arkon RMCPMAMPS Robust Clamp Mount is an exceptionally adaptable locking clamp with a distinctive jaw shape that delivers an extra wide clamping range across both flat surfaces (tables, desks, counters and shelves) and tubular ones (handlebars, roll bars, wheelchairs, strollers, grocery carts and golf carts), small posts included. It works with 4-Hole AMPS holders and adapters, sold separately. In the box you'll find a Robust Clamp Pedestal, a 25mm to AMPS adapter, one 3.75" Standard Robust Mount Shaft, one 2.75" Small Robust Shaft, plus an optional security knob and hardware. Built from high-strength composite materials with corrosion-resistant stainless steel hardware, it fits and comes away without tools on flat surfaces as well as round, square or awkwardly shaped bars and rails. Pick whichever of the two included Robust Mount Shafts – 3.75" or 2.75" – best suits your setup. Clamp onto a table, desk or similar surface between .2 inches and 1.75 inches (5mm to 44.5mm) thick, or mount it to a wheelchair, use it as a microphone stand mount, or fit it to any handlebar or post measuring .25 inches to 2 inches (6.5mm to 51mm) in diameter.