RAM 1.5" Ball Post Clamp Base for Square Posts up to 2.5" Wide

Features: Post Clamp Base consists of a front plate with a 1.5" rubber ball, a back plate and two stainless steel nuts and bolts Fits square posts with a maximum width of 2.5" and a maximum depth of 2 1/8" 1.5" ball fits RAM C size socket arms Constructed of marine grade aluminum with stainless steel hardware Holds up to 4 lbs. Made in the USA   Brand: RAM Mounts Part number: RAM-247U-25 Warranty: Manufacturer's lifetime warranty