The RAM-D-202U-22 combines a RAM D Size 2.25" ball with a compact 2" square mounting plate. Its four-hole pattern measures 1.5" x 1.5" center to center, providing a secure drill-down connection for compatible equipment and mounting surfaces. The marine-grade aluminum construction supports demanding commercial, industrial, and vehicle applications while connecting with compatible RAM D Size socket arms. Key Features Integrated RAM D Size 2.25" ball 2" x 2" square mounting plate Four-hole pattern measuring 1.5" x 1.5" center to center Compatible with RAM D Size socket arms and mounting components Powder-coated marine-grade aluminum construction Supports up to 6 lbs under standard-use conditions Use Cases & Compatibility This ball base can be attached to compatible flat surfaces, equipment, brackets, and mounting structures that use the specified four-hole pattern. Compatible with a variety of RAM D Size 2.25" socket arms and mounting components. Mounting hardware is not included. Specifications Ball Size: D Size 2.25" Ball Hole Pattern: Four-hole, 1.5" x 1.5" center to center Plate Dimensions: 2" x 2" Material: Marine-grade aluminum Weight Capacity: Standard Use: 6 lbs; Heavy-Duty Use: 5 lbs Product Weight: 0.49 lb Brand & Warranty Brand: RAM Mounts Manufacturer Part Number: RAM-D-202U-22 Warranty: Manufacturer’s lifetime warranty. Gadget Mounts is an Authorized RAM Mounts Dealer.