Product Description Detailed Specs Downloads Reviews/Questions Product Description RAM MOUNT, SHRT MNT. W/2.43DIA. & 2.43 X 1.31 BASES Detailed Specs null null null null null null null null null null MFG Part Number RAM-138U-B Product Type Accessory Downloads Reviews/Questions The Ram Mounts RAM-138U-B is also known as RAM -RAM138UB or RAM138UB