The RAM-101U-GRA9 consists of a 9" long aluminum pipe and C size double socket arm, with a drill-down pedistal base and a 2.5" diameter round plate with universal AMPS hole pattern. Information SOCKET TO SOCKET LENGTH: 4.66" HOLE PATTERN: 4-Hole AMPS: 1.181" x 1.496" 3-Hole 120-Degree: 1.812" Diameter BALL SIZE: C Size (1.5") WEIGHT CAPACITY: Standard Use: 4 lbs Heavy-Duty Use: 3 lbs MATERIALS: Marine-grade aluminum PACKAGING TYPE: Poly Bag WEIGHT: 3.45 lb Hardware Breakdown RAM® 5" x 5" Base and Ratchet Adapter with Female Teeth RAM-282U RAM® 1/2" NPT Hole and Ratchet Adapter with Male Teeth - RAM-284U RAM® 9" Long 1/2" NPT Male Threaded Pipe RAM-PA8209 RAM® Universal Double Ball Mount with Round Plate and 1/2" NPT Thread RAM-101-218-1U Additional Hardware RAM® Pin-Lock™ Security Kit for Single Swing Arms on RAM® Vehicle Kits RAM® Pin-Lock™ Security Kit for Single Swing Arms on RAM® Vehicle Kits RAP-S-KNOB-VB-109U
