This is an adapter so you can fit the Garmin zumo in your bmw cradle and have the Garmin still locking on the key.
Remove your bmw nav and fit your Garmin bracket with the 4mm spacer behind. The lever on the left is simply swapped for the one you will have on now.
Please send a message with which colour you prefer at the time you buy, if not you will be sent out black or orange depending on stock.
Bolts come with Allen key heads or Phillips heads depending on stock.
Posted out next day
Located Stockport Cheshire