RAM® Ball Adapter with AMPS Plate and 7mm Holes - RAM-B-347U-BT

The RAM-B-347U-BT base consists of a 1" diameter rubber ball connected at right angles to a 2" x 1.7" square base. The base contains four pre-drilled 7mm holes at each corner. Information HOLE DIMENSIONS:4-Hole AMPS: 1.181" x 1.496" BALL SIZE: B Size (1") WEIGHT CAPACITY: Standard Use: 2 lbs Heavy-Duty Use: 1 lb MATERIALS: Marine-grade aluminum PACKAGING TYPE: Poly Bag WEIGHT: 0.1 lb Additional Hardware B Size Double Socket Arms   RAM® Double Socket Arm - B Size Medium - RAM-B-201U   RAM® Double Socket Arm - B Size Long - RAM-B-201U-C   RAM® Double Socket Arm - B Size Short - RAM-B-201U-A