RAP-B-166-2-PD3U: RAM Universal Windshield Mount for iPhone 3/3GS/4/4S iPod Touch / HTC / Samsung / Motorola / LG / Google Android Smartphone This RAM suction cup windshield mount is designed to hold strong to smooth non-porous surfaces. For best result, mount the suction cup to a glass or non-porous composite surface. Cradle Clamping Dimensions: Height Range: 4.75" - 6.25" Width Range: 2.25" - 3.25"