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RAM-D-201U Features and Options:

• Warranty: Manufacturer's, RAM Mounts (National Products Inc.), Limited Life Time Warranty.
• Arm Material: Black powder coated marine grade aluminum with metal twist knob.
• Arm Length Socket Center to Socket Center: 6.5625 inches.
• Overall Arm Length: 8.375 inches.
• Socket Ball Size: Connects to 2.25 inch D Ball Size / Max. Weight 15 lbs.
• Arm Description: RAM-D-201U is the standard length marine grade aluminum arm 6.5625 inches in length from socket center to socket center and 8.375 inches in overall length. A tightening knob on the side of the arm enables the sockets to clamp firmly to the attached base and mounting plate. The arm allows for easy adjustment by loosening the side knob, a single spring inside the arm opens the sockets, allowing the arm to pivot on the attached plates. This enables the arm and mounting plate to be positioned at various angles allowing the ultimate in position flexibility. Loosen the knob completely and the arm will disconnect from the accessories in seconds!
• Arm Length Alternatives (shown below not included):
  • RAM-D-201U-C short "C" sized length arm 3.1875 inches from socket center to socket center is available. Overall length 5.0625 inches.
    
  • RAM-D-201U-E long "E" sized length arm 11.1875 inches from socket center to socket center, is available. Overall length 12.875 inches.
    

• Arm Length Ball Size Alternatives:
  • B-Ball Arms = 1.0" Ball Size / Max. Weight 5 lbs.
  • C-Ball Arms = 1.5" Ball Size / Max. Weight 10 lbs.
  • E-Ball Arms = 3.68" Ball Size / Max. Weight 20 lbs.