This Photoshop Mockup is composed by two tall boxes made with foldable paper: one lying down and the other one standing, with a size of 6 x 6 x 15 cms in hight resolution (5k+) that will allow you showcase your designs in its high quality.
The customization process is extremely simple due to this file uses the Blueprint & Play technique which consist in putting your design in a 2D plane and by using a Photoshop Action you will see how your design is applied to the scene. Also, you could change the background color and the shadows density using few clicks. Learn more about here: https://medium.com/@originalmockups/psd-mockups-and-the-blueprint-and-play-technique-8d8af699078f