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