Ibera Spring-Loaded Bicycle Stem Mount Phone Cases with Adjustable Angle (Only Compatible Cases) Spring-loaded clip-on quick-release stem mount for Ibera 3rd generation system phone cases Cyclists can switch from portrait to landscape mode for GPS and app use Angle adjustable for customized view angles and reducing glare Put one on each of your bikes and use your Ibera phone case on all of them! Fits on top of bicycle stem caps, ideal for bikes with limited handlebar space