RAM® Tab-Tite™ with Dual Suction for Apple iPad Gen 1-4 + More DriveTrack 71 5" diameter round bases that

5" diameter round bases that contains the universal AMPS hole pattern and standard length double socket arm

The rectangle base contains different combinations of pre-drilled holes which will match up to many electronic devices and mounts

The answer is simple

The mount is designed with a B size 1" diameter rubber ball and socket system that has adjustment points at both ends of the double socket arm

you won't have to worry about exposed sharp edges or unwanted loosening

RAM® Tab-Tite™ with Dual Suction for Apple iPad Gen 1-4 + More DriveTrack 71 5" diameter round bases thatThe RAM B 224 1 TAB3 FRO1 ALA1 KRU consists of a double 3. 3" twist lock suction cup base, double socket arm with retention knob, round base adapter and Tab Tite universal clamping cradle. The suction cup base is designed to have a strong hold on glass and non porous plastic surfaces. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for