... to pull out or push in are not the good. They can easily slide into the unwanted position ...

The tabs one is required to pull out or push in are not the good. They can easily slide into the unwanted position or even partially in or out. If I would recommend buying this product, which I do not, I'd put the basic operating instruction on the back. Based on other reviews, I'd say others would agree. I plan on searching for and getting a better made and easier to use product.

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