The SlipGrip Holder is attached to the Original RAM RAP-202U 2.5 inch Diameter Plastic Base with the 1.5 inch Ball. Please NOTE; you must already own a compatible RAM Mount. The bracket is well constructed and designed for strength and is perfectly designed to fit your device snuggly. It is constructed from High Quality ABS plastic. This design produces a strong and sturdy RAM compatible holder. Ball Size is 1.5 inch. Photos are stock, but the actual mount delivered to you will be the one you ordered. The Bracket attaches to a 1.5 inch RAM Ball Based mechanism, which allows fora 360 degree swivel once engaged in to the RAM Base, which you must already own. PHONE & CASE ARE NOT INCLUDED. INTERNATIONAL ORDERS ARE WELCOMED. QUANTITY ORDERS ARE ACCEPTED.