Tigra bike is awesome. It attaches your iPhone securely to your handlebars, allowing you to walk without worrying for the device, know sil will deteriorate or get water. Although The case is hard and strong (there is an internal components reducing the impacts from falls) you can still use the phone functions as normal (jack, touch screen, camera). The Tigra simply keep the phone locked in place, allowing you to use apps to track your journey or when GPS ride. It can also rotate 360 degrees, which is very useful. Initially, tied the carrier is a bit tricky but once in place, it is so easy of use. I'm not a great runner but however, even on a family bike, it is a very convenient product.