Meet your new go-to mount and component option for pairing any holder or dock with a dashboard drill-down mount. The RAM-101-B-225B2U consists of a C size short length double socket arm, two round 2.5" diameter round bases with the universal AMPS hole pattern, and one 2.10" x 2.60" steel backing plate (hardware included). RAM's patented rubber ball and socket technology dampens shock and vibration and allows for near-infinite adjustment, enabling perfect viewing and operating angle of your device. This part replaces old part RAM-101U-B-XAT1