Update! Now you have two different files to choose from. The updated original, and a half size profile box.You are purchasing the files necessary to create a custom 3D printed box which allows you to make your own Soil Profile in the classroom. You are able to print as many boxes as you need for your class.Simply place the printed screen onto the front of the printed Soil box, and pack each layer into the box tightly. If you are using very dry soil, you can try mixing the dry soil with a little