ladder is part of:

ladder contains:

Full expansion for ladder:
   100%  1x2x2 Small Minifig Ladder
   100%  2.5x14 13-Rung Extension-Ladder Piece
   100%  3x6 7-Rung 2-Clip Ladder
   100%  3x6 7-Rung 4-Clip Ladder
    50%  4x3 4-Rung Ladder/Grate
    10%  8x12 Portcullis