Ideal for vehicle windshields, the RAM-B-166-UN7U consists of a 3.3″ diameterRAM? Twist-Lock suction cup base, medium length double socket arm, and thepopular spring-loaded RAM? X-Grip? phone holder. The RAM? X-Grip? features an’X’ design that expands and contracts to provide a perfect fit for your device- even if it’s in a case. Made of powder-coated, marine-grade aluminum,stainless steel components, and high-strength composite, this version of theRAM? X-Grip? fits phones ranging from 1.87″ to 3.25″ in width and keeps yourdevice completely functional and accessible. RAM? ball and socket technologyallows for near-infinite adjustability to achieve the ideal viewing angle -while also extending the life of your phone by providing shock and vibrationdamping. For outdoor applications, the RAM? X-Grip? includes a device tetherthat is recommended for added security and peace of mind. Spring-loaded ‘X’ design with rubber caps sports great holding power without hiding your phone; includes optional device tether for peace of mind during rugged use Includes RAM? Twist-Lock suction cup base ideal for vehicle windshields and medium length, B size RAM? double socket arm; 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-224-1U RAM-B-201U RAM-HOL-UN7BU Hardware Included Assembly Hardware (1) Optional Tether (1) Glue Tube for Rubber Caps Holder Dimensions Width Range: 1.875″ – 3.25″ Depth Range: .875″ max Suction Size 3.3″ Diameter Socket-to-Socket Length 3″ Ball/Socket Size B Size (1″) Weight Capacity 2 lbs Materials Marine-grade aluminum High strength composite Stainless steel Weight .8 lbs