RAM Mounts X-Grip Large Phone Mount with RAM Twist-Lock Suction Cup Base RAM-B-166-UN10U with Medium Arm for Vehicle Windshields. Features : Spring-loaded 'X' design for large phones 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. Compatible with Apple iPhone 6s Plus, iPhone 7 Plus, iPhone 8 Plus, iPhone Xs Max, DriveTrack 71, RV 660LMT,RV 770 LMT-S, Google Pixel 2 XL, Pixel 3 XL,Pixel 3a XL, Huawei Mate 20 X, Galaxy A8 (2016), Galaxy A9 (2016), Galaxy A9 Pro (2016), Galaxy J7, Galaxy Note 10 Plus, Galaxy On7, Galaxy S10 5G, Galaxy S8. Weight:0.73 lbs.