I needed this while disassembling my Mac Mini for an upgrade in storage. I put it aside and screwed the screws onto it and I had no problems. I read a lot of reviews complaining about the handle. I had no issues with the pencil not being dark enough, dry or anything like that. The other side of the pen is an eraser for each letter you write on the mat. I noticed that with some effort it rubbed off and left no marks. I did a test with a couple of screws and when I lifted the mat and laid it on its side I noticed the movement of the screws. But then again, I'm pretty sure you'll be using this mat on a flat surface. I would highly recommend it to anyone.
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