MONSTA X 12th Mini REASON is comprised of 4 versions (VER.1 / VER.2 / VER.3 / VER.4). Contents may differ between each version, including a sleeve cover (210 x 150 mm), a 72-page photo book (148 x 210 mm), a 16-page lyric book (148 x 210mm), 1 CD-R, a random 1 out of 5 photocards (62 x 88 mm), and a random 1 out of 10 unit photocard (62 x 88 mm).
