RAM-247U-25 RAM Mounts Square Post Clamp Base w/ 1.5 Inch Ball for Posts up to 2.5" Wide

RAM-247U-25 RAM Mounts Square Post Clamp Base w/ 1.5 Inch Ball for Posts up to 2.5" Wide SPECIAL NOTE: This product features a 1.5-inch ball. It is NOT compatible with RAM Mounts 1-inch B-sized products. OVERVIEW The RAM-247U-25 consists of a 2.5" clamp base with 1.5" ball. HARDWARE INCLUDED (2) 5/16"-18 x 3" Macine Screws(2) 5/16"-18 Nylock Nuts   CLAMP RANGE 2.5" max width   BALL/SOCKET SIZE C Size (1.5")   WEIGHT CAPACITY 4 lbs   MATERIALS Marine-grade aluminum   PACKAGING TYPE Poly Bag   WEIGHT 0.68 lbs.