The RAP-B-224-1U is a locking 3.25 inch rubber suction cup base that has a standard RAM double hole diamond shaped end with a RAP-B-238U attached. The suction cup base is designed to have an extra strong hold on any smooth non-porous surface, but for best results mount the suction cup base to a glass surface.
The diamond shaped end has two holes 1.912 inches from center to center and connects to the RAP-B-238U universal plastic diamond plate included. The RAP-B-238U universal plastic diamond plate uses the industry standard AMPS hole pattern and connects to both RAM mounts and cradles/holders (RAM-HOL-xxxx) or non-RAM mount products using the same hole pattern.
Also see the RAM-B-166U (Marine Grade Aluminum) or RAP-B-166U (High Strength Plastic) suction cup mounts. The RAP-B-224-1U is also available with a universal METAL diamond plate, part number RAM-B-224-1U.