Vex Robotics Skid Steer

My son put this together one time and would like to sell it to get something new. This is NOT a lego set. It's more like a stem project. Lots of pieces. This will keep anyone that likes to build entertained for hours. All the pieces have been accounted for by me...twice. I counted and matched with the key in the instruction booklet. This comes with original box, instruction book and all pieces. Non Smoking Home.