FEATURES The diamond plate features industry-standard AMPS hole pattern and measures 2.43" x 1.31" Compatible with several RAM® device holders and cradles; ball and socket technology allows for near-infinite adjustability Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments Backed by a lifetime warranty OVERVIEW The RAM-B-238U ball base consists of a 1" B size rubber ball connected to a 2.43" x 1.31" diamond plate. The diamond plate features two holes that measure 1.912" from center to center, matching the industry standard AMPS hole pattern. This diamond ball base is compatible with a wide variety of RAM® device holders and cradles. HOLE PATTERN 2-Hole AMPS: 1.912" PLATE SIZE 2.43" x 1.31" BALL SIZE B Size (1") WEIGHT CAPACITY Standard Use: 2 lbsHeavy-Duty Use: 1 lb MATERIALS Marine-grade aluminum PACKAGING TYPE Poly Bag WEIGHT 0.1 lbs