Ram Mount Composite Twist Lock Suction Cup Mount with Universal X-Grip Cellphone Holder - Non-Retail Packaging - Black Consists of a 3.25" twist lock suction cup base, double socket system and universal spring loaded X-Grip holder for cell phones The mount is designed with a RAM 1" diameter patented rubber ball and socket system The included X-Grip cradle has a clean and clever four leg design that sports great holding power Holder Dimensions: Minimum Width = 1.875", Maximum Width = 3.25", Depth = 0.875" Rustproof