Between all mechanisms that i know i choose one that i like most, scissors. That beacause scissors are very usuful tools and how it works is very simple. First of all this mechamism have two blades which are very sharp so we have to be carefull when we use it. The blades are set up so that when you squeeze the handles, the sharp edges meet each other as a result to cut the paper, or fabric, that is between them. We have all try to use scissors for any uses. For example to cut a paper, a fabric to make clothes, hair. You can find scissors in any bookshop or supermarket, depends the use that you want it.
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