Measures guide

The unique dual ball-and-socket design allows the mount to be adjusted to the most perfect viewing or operating angle, all by turning a single knob. This modular design can be configured with a variety of interchangeable components to meet your specific mounting needs.

Sphere size		Short arm	Medium Arm	Long Arm
A Size		N/A	RAM-A-201U	RAM-A-201U-B
A Size	Total Length Socket-to-socket length	N/A	2.11" (5.35 cm) 1.67" (4.24 cm)	3.57" (9.06 cm) 3.12" (7.92 cm)
B Size		RAM-B-201U-A	RAM-B-201U	RAM-B-201U-C
B Size	Total length Socket-to-socket length	2.42" (6.14 cm) 1.75" (4.44 cm)	3.73" (9.47 cm) 3.00" (7.62 cm)	6.00" (15.24 cm) 5.31" (13.48 cm)
C Size		RAM-201U-B	RAM-201U	RAM-201U-D
C Size	Total length Socket-to-socket length	3.56" (9.04 cm) 2.50" (6.35 cm)	5.69" (14.45 cm) 4.66" (11.83 cm)	9.13" (23.19 cm) 8.00" (20.32 cm)
D Size		RAM-D-201U-C	RAM-D-201U	RAM-D-201U-E
D Size	Total length Socket-to-socket length	5.10" (12.95 cm) 3.60" (9.14 cm)	8.44" (21.43 cm) 6.88" (17.47 cm)	12.98" (32.96 cm) 11.41" (28.98 cm)
E Size		RAM-E-201U-D	RAM-E-201U	N/A
E Size	Total length Socket-to-socket length	7.31" (18.56 cm) 4.98" (12.64 cm)	12.63" (32.08 cm) 9.88" (25.09 cm)	N/A

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