Gomadic Air Vent Clip Based Cradle Holder Car / Auto Mount suitable for the Apple iPhone 4 Spring loaded vent clips designed to accommodate both horizontal and vertical oriented air vent systems. A vent mounted cradle base for use with the Apple iPhone 4 device. Holder is designed to adjust to accommodate the exact required dimensions (115 x 59.5 x 9.2 mm). Gomadic Holder is highly adjustable with sliding/rotating mechanisms on side and bottom ensuring easy access to all Apple iPhone 4 buttons and controls. 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. Engineered using non-scratch and non-slip materials on all contact surfaces.