This is a Rock Bros waterproof phone holder. It has a transparent film over the front of the phone which means the touchscreen can still be used. It also has a headphone hole in it so that you can still listen to music while you are cycling. It has sealed zippers to maintain the waterproofing and a sun visor which means that you can see the screen clearly even in bright sunshine. It also comes with side pouches so you can store sunglasses, gloves, snacks and other items easily. It is really easy to install with long straps so it can fix on the top tube and frame without moving around.