Included: 1 x RAM Large Universal Plate with E-Size Ball (RAM-E-111BU) 1 x RAM Standard Clamp Arm E Size 3.38" Socket (RAM-E-201U) 1 x RAM Round Base with 3.38" E Ball (RAM-E-202U) The RAM-E-111U is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device. Specifications Hardware Included (4) Shoulder washers: 0.312" × 0.187" (7.9 mm × 4.7 mm) Socket to Socket Length 9.875" (250.8 mm) Hole Pattern Drawing File - Marine Electonics Plate Drawing File - Large Round Ball Plate Ball Size E Size (3.38" / 85.9 mm) Weight Capacity Standard use: 15 lb (6.8 kg) Heavy-duty use: 10 lb (4.5 kg) Materials Marine-grade aluminium Packaging Type Poly bag Weight 15.0 lb (6.80 kg) Additional Information: This plate is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device. Help Drawing File - Marine Electonics Plate Drawing File - Large Round Ball Plate