thebrickconsultant on Twitter: "Found some LEGO Quatro in the charity shop today. LEGO x2 = Duplo x2 = Quatro! And they all fit together 🙂 Shame the storage boxes are not a
LEGO Quatro Backstein 2x2 mit Zwei Eyes Muster (48138) | Brick Owl - LEGO Marktplatz