This is a good product but I returned mine. Even on the lowest setting, my laptop screen is set too high for me to sit comfortably and look at the screen for very long hours. In fact, everything depends on the height of the table you put it on. And it also depends on whether you are tall or short. Non-slip rubber protection feet on the bottom can be used. You can always buy something rubberized to set on top if you have a wooden table. Before deciding to return it, I thought I'd buy some of that non-slip, drawer-type material. It has quite a few different settings, but I think the settings could go a little deeper to ensure that if you have a heavy or large laptop, that setting is retained. I have a 17.3 inch laptop and while it fits well I was a little concerned if I meet him he might decide not to stay. I have a wooden desk and it slipped when I tried to open my laptop without holding it. So I think this product could use some improvements. It wasn't ideal for me, but maybe for you if you use it in a different setup than me.
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