Medium Arm (RAM-D-201U):

• Standard RAM double socket arm provides an ideal overall length of 8.44″ and a socket-to-socket length of 6.88″
• Attaches to any D size RAM ball component, including mounting bases and device holders; double ball and socket technology allows for near-infinite adjustability of your RAM mounting system
• Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
• Backed by a lifetime warranty

Short Arm (RAM-D-201U-C):

• Low-profile design with an overall length of 5.1″ and socket-to-socket length of 3.6″
• Attaches to any D size RAM ball component, including mounting bases and device holders; double ball and socket technology allows for near-infinite adjustability of your RAM mounting system
• Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
• Backed by a lifetime warranty