Imagine yourself, riding your bike, and you want to check the GPS on your phone to see if you are right in track. You have to stop, get your phone from your pocket and then keep moving, it's a pain and time loss.
But you can change that by using this support (which is so small that it fits in your pocket), and attaching your phone to bike handles (fits any bike handle and support any kind of phones).
From now on, listen to music, track GPS, answer the phone... on the go. and guess what? It so easy to set up! no need for any material or any change to the bike.