The RAM-B-102-UN7U consists of a diamond base, double socket arm and universalspring loaded X-Grip? cradle for cell phones. Designed into the mount is a 1″diameter patented rubber ball and socket system with adjustment points at theboth ends of the socket arm; this with a twist of the arm knob, allows you canmove the X-Grip? mount to your optimum viewing position. The 2.43″ x 1.31″diamond base has two holes 1.912″ from center to center and matches theindustry standard AMPS hole pattern. The included X-Grip? cradle has a cleanand clever four leg design that sports great holding power without hiding yourphone behind foam pads and plastic. The spring loaded X-Grip? cradle expandsand contracts, allowing for a perfect custom fit of your cell phone. Theperfect complement to the modern sleek interior of today’s vehicles, the RAMX-Grip? is the cell phone cradle evolved. The X-Grip? includes a device tetherrecommended for outdoor applications. The cradle is compatible with handhelddevices that will fit the dimensions listed below. It is important to verifythe dimensions of your handheld device with a case/sleeve/skin when determiningthe overall size. Spring-loaded ‘X’ design features rubber caps and sports great holding power without hiding your phone; includes optional device tether for peace of mind during rugged use Diamond ball base featuring universal AMPS hole pattern included; ball and socket technology allows for near-infinite adjustability Made of powder-coated, marine-grade aluminum, stainless steel components, and high-strength composite for durability and reliability in the most demanding environments Backed by a lifetime warranty Components RAM-B-238U RAM-B-201U RAM-HOL-UN7BU Hardware Included (1) Optional Tether (1) Glue Tube for Rubber Caps (2) #8-32 x 1/2″ Machine Screws (2) #8-32 x 5/8″ Machine Screws (2) #8-32 x .75″ Screws (2) #8-32 Nylock Nuts Holder Dimensions Width Range: 1.875″ – 3.25″ Depth Range: .875″ max Socket-to-Socket Length 3″ Hole Pattern 2-Hole AMPS: 1.912″ Plate Size 2.43″ x 1.31″ Ball/Socket Size B Size (1″) Weight Capacity 2 lbs Materials Marine-grade aluminum High strength composite Stainless steel Weight .59 lbs