LEGO Mindstorms EV3 Set 31313. It’s used and has ware. I have no idea what’s there for parts or what’s missing. It got wet. There’s no box. It looked like batteries might’ve corroded in a few pieces. This is being sold for parts or repair. I have no clue if any of it works or what pieces are missing. There still looks like a good amount of pieces so check pictures to see what’s there prior to bidding. If you have any questions please feel free to ask.