Arkon GPSCM117 14.5 to 18.5-Inch Extension Windshield Mount for Garmin Nuvi and TomTom GPS Trucks and Rigs Extends from 14.5" to 18.5" perfect for long dash Super Strong suction cup and rigid base Compatible with all Garmin Nuvi, TomTom Easyport, TomTom Start and Ease, TomTom Via No tools or adhesive required Easy to install