It's small modification of Lego 75169 - Duel on Naboo set which is a small set with ONLY ONE WALL. The main change is the different open direction of the beam wall that stopped Obi-Wan from helping his master during the lightsaber fight with Darth Maul.
Because of limited space at home, I can't build a scene with correct ratio. It is fun to look at the iconic scenes when I walk by them. This modification is totally painless and easy. Anyone can do it if you really like this scene in Episode I.
