RAM Clamp Base - Square 102mm Post Base clamp with 2.25 inch (D Series) Ball

RAM-D-247U-4 RAM® Square Post Clamp Base for Posts up to 102mm Wide - D SizeFeatures Clamping base ideal for square posts up to 102mm wide; adjustable and easily removable Included D size 2.25" RAM® rubber ball allows for connection to any D size RAM® double socket arm RAM ball and socket