Product InformationSuction cup Diameter:6.5cmWidth: can be extended up to 130mmArm size:about 17cmMaterial:High-quality plasticWeight:100gColor:BlackFit models: Cell phones / GPS / PAD / MP4 / PSP360 Degree Rotating Flexible Gooseneck Rotating Clamp - Adjustable holder to view your device at any angle or orientation while driving.Padded grip that protects your phone from scratches and steadily holds it while the car is in motion.Compatibility:iPhone 6 plus，6， 5s， 5c， Samsung Galaxy S6 Edge，S6，S5， S4， S3， Note 4， 5， Google Nexus 5， 4，Motorola Droid RAZR/MAXX/HD，Htc one/m8/one max/one x ，Blackberry Q10 & Z10， LG Optimus G/Nexus 4 ， Nokia，Compatible with majority smartphones on the market.To install the the URPOWER car holder:-Clean the suction pad and the desired location to which it sticks.-please adhere the chassis silicone the surface first， and press the bottom switch.then fixed it.-Adjust the angle to your preference， you can also tighten it to prevent movement.