Arkon's SM6RMCPM Robust Clamp Phone and Midsize Tablet Mount is a highly versatile locking clamp mount with a unique jaw design that has an extra wide clamping range for both flat (including tables, desks, counters, shelves) and tubular (including handlebars, roll bars, wheelchairs, strollers, grocery carts, golf carts) surfaces, including small posts. It fits phones and midsize tablets up to 7.5 inches in screen size. This package includes a Robust Clamp Pedestal, a Slim-Grip Ultra Universal Phone and Midsize Tablet Holder, one 3.75-inch Standard Robust Mount Shaft Arm, one 2.75 inch Small Robust Shaft Arm, and optional security knob and hardware. This versatile clamp mount is made of high-strength composite materials with corrosion-resistant stainless steel hardware, and conveniently installs and removes without any tools on flat as well as round, square, or odd shaped bars and rails. Choose from one of either the 3.75 inch or 2.75 inch Robust Mount Shafts included to fit your particular mounting environment. Clamp to a table, desk, or other surfaces from .2 inches to 1.75 inches (5mm to 44.5mm) thick. Or, use on a wheelchair, as a microphone stand mount, or on any handlebar or post .25 inches to 2 inches (6.5mm to 51mm) in diameter. The mount installs easily with a turn of the clamp's knob. The clamp is padded in order to provide gripping support and protection to the mounting surface. An optional removable security knob is provided to deter theft. Use the Robust Clamp to mount your device virtually anywhere.