LEGO 10255 assembly square. I purchased this set used a year or two ago with the intention of doing an alternate build with it.  It was listed as complete but I did not check it.   Since then my kids have lost interest in Lego. 

I'm going to list it as 95% complete but I did not inventory it.  I tried to pull any special or printed pieces out to make it easier to see them

Selling as is.