RAM® Double Ball Mount with Drill-Down, U-Bolt & Adhesive Bases

The RAM-B-101U-CR1 consists of a medium length B-size arm with two 2.5" (63.5 mm) diameter round plates with universal AMPS hole pattern. This mount also includes a 2.5" (63.5 mm) diameter double sided adhesive pad and a U-Bolt base with 1" (25.4 mm) diameter B-size ball. The U-Bolt base is compatible with round rails between .5" (12.7 mm) and 1.25" (31.8 mm) in diameter.