Samsung Galaxy Avant Universal Windshield Dashboard Car Phone Holder for Smartphones Easy expandable back button helps securely accommodate the size of your smartphone Heavy duty arms with 360 rotation capability allow flexibility Extra-large suction cup with lock button conveniently attaches to dashboard, windshield or any other smooth surface and easily removable Effortless maintenance of suction cup by wiping with a damp cloth Holder with sponge pads can hold devices up to 3.5 inches wide