This is a simple but very popular suction mount with 75mm diameter vacuum cup, black metal mount and 1/4"-20 threaded stud.
The metal suction mount is ideal for fixing onto cars, off-road vehicles, boats, windows or countertops for holding accessories in place without having to drill any holes. A spring-balanced pump ensures a consistent vacuum level and a red-line indicator warns if there is any drop in holding power.
The rubber pad can be attached to flat or curved non-porous surfaces. This device can be used to mount a wide range of electronic devices, for example lights on emergency and rescue vehicles.