The clips is adjustable, the max opening wide is 76mm, perfect fits for 4.8 inches mobiles Elastic fixation design, with the elastic fixation rubber band,the size of steering wheel won't effect the installation Easy installation, no need extra tools, just a few seconds to finish it. The device is highly compact with the steering wheel, can be moved freely, no security risk. The device is embedded with soft silicone ad, which protects your phone from scratching.