Vent Vehicle Mount Cradle Designed for TomTom XL 340S - Unique Auto Car Holder Clips into Air Vents. A vent mounted cradle base for use with the TomTom XL 340S device. Holder is designed to adjust to accommodate the exact required dimensions (119.68 x 81.38 x 23.06 mm). Gomadic Holder is highly adjustable with sliding/rotating mechanisms on side and bottom ensuring easy access to all TomTom XL 340S buttons and controls. Spring loaded vent clips designed to accommodate both horizontal and vertical oriented air vent systems. Gomadic holder base is simple to use and will set up and store in seconds. Built using a failsafe mechanism to safely and securely hold device. Heavy Duty foam pads (0.5 inch thick) line grips on side of holder. Made with high density construction compress to secure device when in use.