This item was a replacement for the original mounting that had lost the vane on it that provide support/pressure for the plastic suction cup below. The vanes simply break off.
The new one now has the vanes which provide the much needed support for the suction cup.
The whole unit is now much more secure and stable.
This is a replacement for the original Tom Tom GPS unit that was damaged after years of use. This one looks and feels the same, however, the swivel is not very tight and may slide the GPS on a bumpy road.