Why are there sometimes two pairs of chopsticks at a Chinese

One size does not fit all: How some Asian cultures use chopsticks differently

Why are there sometimes two pairs of chopsticks at a Chinese restauran

Let's Learn More About Chopsticks

What does it mean if someone uses two pairs of chopsticks at once? - Quora

Chopsticks - Wikipedia

Chopsticks - Wikipedia

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Chopsticks Pair of 5/10 Bamboo Chopsticks Chinese Chopsticks

A Brief History of Chopsticks

Why are there always two sets of chopsticks at Japanese restaurants? What is the purpose of the extra pair if everyone only uses one? - Quora