UNKNOWN X / UNDERDOG X PACKAGE : OUTBOX / CD + 100P PHOTOBOOK + LYRIC PAPER 1EA + PHOTO 1EA + PHOTO CARD 1EA + UNIT PHOTOCARD 1EA + BOOKMARK 1EA / FOLDED POSTER 1EA + STICKER 1SET (1ST PRESS ONLY) HELLO X / XX PACKAGE : OUTBOX / CD + CD SLEEVE 1EA + 100P PHOTOBOOK + LYRIC PAPER 1EA + PHOTO 1EA + PHOTO CARD 1EA + UNIT PHOTOCARD 1EA + BOOKMARK 1EA / FOLDED POSTER 1EA + STICKER 1SET (1ST PRESS ONLY) COVER : UNKNOWN X / UNDERDOG X / HELLO X / XX UNKNOWN X / UNDERDOG X SIZE : 163*203*13 (mm) HELLO X / XX SIZE : 163*203*12.5 (mm)