The RAP-SB-238FU consists of 2.43" x 1.31" composite diamond base with female socket. The base has two holes 1.912" from center to center, matches the industry standard AMPS hole pattern and will connect to a large variety of RAM Mount and third party cradles. The female socket will attach to RAM snap link ball mounts.
Material: High Strength Composite & Powder Coated Marine Grade Aluminum
The "U" in the part number reflects product packaged in poly bag.