|Come from China's Qing Dynasty era, the ring features a 1.2 centimeter-long, 0.7 centimeter-wide abacus that, despite its small stature, is still a fully functional counting tool. But as ChinaCulture.org explains, the less-than-one-millimeter-long beads are far too small too be moved with your own stubby fingers:
More surprisingly, the beads can be moved easily and smoothly along the silver rods. For operating this tiny abacus, fingertips are too big. It seems that the beads can only be moved by small tools such as pins. However, this is no problem for this abacus's primary user—the ancient Chinese lady, for she only needs to pick one from her many hairpins.
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