Product Description Detailed Specs Downloads Reviews/Questions Product Description RAM MOUNTS, UNPK RAM CLAMP BASE W/ 2.25" BALL 1.75" - 4" WIDTH Detailed Specs MFG Part Number RAM-D-247U Product Type Accessory null null null null null null null null null null Downloads Reviews/Questions The Ram Mounts RAM-D-247U is also known as RAM -RAMD247U or RAMD247U