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RAM-B-121-C-238U Includes the Following:

• Warranty: Manufacturer's, RAM Mounts (National Products Inc.), Limited Life Time Warranty.
• Color/Material: Black powder coated marine grade aluminum. 
• Socket Ball Size: B-Ball Size = 1.0 inch Ball. Maximum suggested weight 5 lbs. 
• Yoke Base: RAM-B-121BU aluminum yoke clamp mount base fits a rail diameter from 5/8 inch to a maximum of 1.25 inches. The 1 inch rubber ball sits at a right angle to the plane of the mount so when connected to a rail, the ball sits parallel to the rail. To mount the base, simply place the yoke clamps around the rail and then screw the large knob at the end of the threaded rod. The hand tightened clamp makes this the perfect mounting system for rental planes and unusual shaped motorbike rails. The rail does not need to be perfectly round to use this base.
• Arm:RAM-B-201U-C long length sized arm for 1 inch balls.
  
  • Arm Length Socket Center to Socket Center: 5.1875 inches.
  • Overall Arm Length: 6.0 inches.
  • A plastic twist knob allows you to articulate the arm in any direction. 
• Adapter: RAM-B-238U universal diamond plate with two holes measuring 1.9 inches from hole center to hole center and accommodates the AMPS hole pattern.
• Hardware Included: No. Mounting hardware is not included. Most cradles and holders include mounting hardware to attach to the RAM-B-238U.
• Cradle/Holders/Aqua Box: Optional. Select a holder for Apple, cell phones, GPS systems and electronic devices by clicking here.