This holder can be used to mount the Nedap 9891900 Compact Tag to the inside of the vehicle's windshield easily. The Tag Holder is attached to the windshield by two suction cups. The holder is suitable for credit card sized tags and is attached to the inside of the windshield by two suction pads. This holder is designed for cards with a total thickness of up to 5 mm [0.2 in].