The instructions are not clear.  When a part has a ritht or wrong orientation, the obmect should be marked.  The parts did not all fit together as indicated.  I had to undo several parts to ensure that perpendicular orientaton was maintained between the front and rear.The back portions did not fit into the sides firmly.  Fitting the seat hinge mechanism required the use of a mallet to get the pieces to fit into the hinge holes.  Sesveral pi0eces of the kit were mared by rubbing of the styrofoam.  The white areas came off with soap and water along with a scruvvie.  Items placed in the box do not stay dry when the seat/box is placed outside in the rain.