【Phenomenon】 A series of mysterious events unfolds, constantly defying the audience's expectations. Because four distinct surprises are presented, it's been named "Four Nightmares." When two ropes of different lengths are combined, they surprisingly become the same length. When the two ropes are tied together, the knot effortlessly unties, becoming a single rope. When a knot is made in the center, it vanishes as if melting away. Furthermore, when another knot is made, this time the knot separates from the rope as a seamless ring. *No instruction manual is included, but an instructional DVD is provided.