Stackable Box V4 3in1

A simple remix of the Yuan4114 V4 version of Stackable Box.
i just create a "3 round" large box, fully compatible with others.

So, if like me, you need to have a larger box, you can print it and stack with standard one.

Be carefull, on top on this 3 round box, you can only stack other 3 round box. So, it need to be on top of standards box, or top of other 3 round box.