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1. Current disposable chopsticks can only be used on one end, which has significantly wasted the resource.
2. The dual-purpose chopsticks can be used on both ends. One end is longer, and the other end is shorter. The longer end can be used by yourself, while the short end can be used to share food with other people under various situations such as the picnic.
3. One pair of dual-purpose chopsticks can provide the function of two pairs of normal disposable chopsticks, which has saved wood, and it can also realize sharing with other people under special situations.
Dan Zhang Jingdan Wang Ying Zhang Peng Wang