How to fold a paper box simple method illustration

One, a useless rectangular paper folded in half twice

Two, first pull one side of the center line folded down

Three, the other side of the same, folded as shown below

Four, folded along the red line

Five, the other side of the folded, as shown in the picture

Four, the left and right sides of the folded over the center line, the other side of the folded over the center line, and the other side of the folded over the center line, and the other side of the folded over the center line. The other side of the same

seven, the triangle below the part of the fold up, folded as shown below

eight, in turn, pull open the corners of the four ends, folded inward, so that the more solid

nine, folded can be opened