Oooms Studio designed this piece to have at least one drawer that will always stay slightly open while the other drawers are closed. In addition, the way to open a drawer is to hit or kick the one next to it.
Mo version; Du version and Lo version. The Mo version is the monocyle. The Du version is a four-wheel car with two monocycles to form a six-wheel car. The Lo version is when many cars are joined to form a train.