Model Tank Trap

I wanted to make my own exctremely simple Tank Trap.

Print in pairs of 3, and look at a reference picture when you assemble. You're a big boy, you can figure it out.

To make it easy for yourself, mark the middle of each side, and line up edges. They shouldn't be centered, but offset.

To make it easier I closed the top off, so you always know which way is up.