The Pro Bar mount offers many more uses. The two-step lock provides perfect protection for the iPhone. With this technology it is not possible for the iPhone to detach itself unintentionally from the Quad Lock mount, even if it is exposed to shocks or inclinations. Pro Bar Mount is designed for extreme situations where you don't want to miss out on the iPhone. Ideal for cycling or motorcycling. Thanks to its intelligent design, Quad Lock Pro Bar Mount can be attached to the handlebar of the bike, for example, so that you can use your iPhone as a navigation device. This is possible due to the concave shape of the mounting plate. To attach the Pro Bar Mount to a bar, simply put it on it and attach the whole device with two rubber bands to the places provided. The fastening straps are also supplied with the Quad Lock. You can also use the supplied cable ties to permanently attach the Pro Bar Mount. Mounting on stem or handlebar ( -40mm) "Dual Stage Lock" safety lock "Portrait or Landscape" rotating system compatible with all Quad Lock Cases.