The RAP-105-6224-AP9U consists of a 3.25″ suction cup locking base, 6″ aluminum flex rod and high strength composite cradle. Once the suction base is securely mounted, you can move the cradle to your optimum viewing position with a simple bend of the arm. The suction cup base is designed to have an extra strong hold on any smooth non-porous surface. For best results mount the suction cup to glass or non-porous plastic surfaces. This mount is designed to hold the following devices: Apple iPhone 4 WITHOUT CASE, SKIN OR SLEEVE Apple iPhone 4S WITHOUT CASE, SKIN OR SLEEVEMaterial: High Strength CompositeNote: The „U” in the part number reflects product packaged in poly bag.