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The two crossed rings move in a way that’s genuinely unlike any puzzle I’ve tried—there’s a real satisfying click when the tabs finally line up. I’ve had it on my desk for a week and still find myself picking it up during calls. It’s compact enough to toss in a pocket, too.

The tetrahedral frame feels surprisingly solid for something this small, and the way the two crossed rings interact with those metal tabs keeps my brain engaged for way longer than I expected. It’s the kind of puzzle that’s frustrating in the best possible way, and the astrolabe-inspired design make

The crossed rings move in a way that feels almost alive, and that tetrahedral frame gives it a satisfying heft. Those little metal tabs kept me stumped for a solid half hour, which is exactly what I wanted from a pocket puzzle.