Clamping base ideal for posts from 1.25" to 1.875" in diameter
Included C size 1.5" RAM® rubber ball allows for connection to any C size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability
Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments

The RAM-271U-12, round pipe base, consists of a 1.5" rubber ball connected that will connect to a pipe tubing diameter from 1.25" to 1.875" in diameter.
Hardware included
(2) 1/4"-20 x 1.5" Screws
(2) 1/4"-20 Nylock Nuts
(2) Rubber Caps

Clamp range
1.25" - 1.875" diameter