Lego Parts: Lego Parts: 6 x 8 Trap Door Frame with Door *Complete Assembly*, Dark Bluish Grey, 4 Count Genuine New LEGO Parts Lego Trap Doors and Frames, 4 Complete Sets, 8 Pieces Total 4 Trap Doors: (6x4 studs); 4 Trap Door Frames (6x8 studs) Color: Dark Bluish Grey