This is a 3d virtual reality viewer that shows off some of the many features of Google CardBoard. Immerse yourself in this virtual viewer to get a realist 3d experience. The app comes with easy to access buttons in the upper left hand corner to zoom in and out, and view the next model. Simply slide your phone to the side while using google CardBoard to use the button. As you zoom in and rotate around the models you will get the experience of them standing right in front of you. Please observe these models thoroughly and have fun!