The RAM double Suction Cup base. The RAM-B-189 consists of a double 3.3" twist lock suction cup base. Included is either a 1.5" (C Ball) or 1" (B Ball) round AMPS adapter plate. The suction cup is designed to have an extra strong hold on any smooth non-porous surface, but for best results, mount the suction cup on a glass or non-porous plastic surface.

Compatible with RAM Metal Arms and RAM Device holders to create a window mount suitable for any phone or tablet.

Material: 
High Strength Composite and Marine Grade Aluminium

Ball Size:
1" Rubber Ball "B" Size or 1.5" Rubber Ball "C" Size