A square vase settles a problem round ones create: it sits flush against a wall, it lines up with its neighbours, and it stays put when somebody knocks the table. This square glass vase is not trying to be clever about any of that. Buy one and you own a tidy little container holding a tidy little flower. Buy twelve, or thirty-six, and you own something that looks like it needed a florist with firm views on symmetry, when what it actually needed was arithmetic. The diameter holds constant at 2.5 inches while the height climbs in steps of two — 2, 4, 6, then 8. Mixed heights read as composition. Matched heights read as intent. Either way this cube glass vase pays for itself twice, as a container and again as a component. The form has not changed since 2008, mostly because nobody has put forward a convincing reason to change it. Start with three. You will not stop there.