The air vent pedestal features the swivel mechanism with a handy tightening ring.  The mount will fit the socket on the back of your GPS (or cradle on the GO series) just like the suction mount from TomTom.

The removable air vent pedestal can be moved easily from vehicle to vehicle without damaging your vents, when used properly. It's the perfect travel companion. This solution is designed for use only with vehicle's having horizontal air vents.

Fits many TomTom Models including:
Via models:  1535, 1535T, 1535M, 1535TM, 1505, 1505T, 1505M, 1505TM, 1435, 1435T, 1435M, 1435TM, 1405, 1405T, 1405M, 1405TM, 220, 180, 160, 125, 120, 110
GO Models:  Go 950, 940, 750, 740, 550, 540 Live & Traffic
GO Models:  2505 TM, 2535 M, 2535 TM, 2535 TM WTE, Live 1005