Review on S-140 Magnetic Silicone Soldering Mat Heat Resistant Work Mat For Electronics Repair, Phone, Soldering Iron, BGA, Workbench - Size: 13.8 X 9.8 Inch, 932°F Maximum Temperature Limit by Daniel Roe

I will update this if I find any issues going forward, but having said that for the price of 26$ and it including a static bracelet and 2 precision grips along with the mat even if the magnetism turns out to be less than perfect the design is still awesome. The ruler at the bottom shows imperial and metric and is super handy, all of the screw drop points are labeled, everything is more or less and some of the screw containers are magnetized although some have criticized the strength of the magnets. some have pointed out it is not ESD resistant, I will do some tests and research on this, but so long as you are safe and practice proper precautions that you would do on most other surfaces I don't think that is a valid argument as they don't claim ESD just "static resistant" and to be fair. the mat itself won't get damaged by static so it is true. I will update this if I find anything wrong but it really does seem like a great deal, I chose this one despite the price because of the screw drop designed in containers locations and the ruler on the mat as well as the tool slots, the design is awesome and it is cheap. if you want something larger than most things you would ever need for soldering purposes or if you want perfect magnets or containers that close etc you shouldn't buy a 26$ mat expecting what you would get for a premium good that costs way more. This is large enough to work with my rather large laptop on it in the event I for some reason needed to do that instead of embedded systems work I could albeit my laptop would be slightly off the mat or covering portions of the mat, and I have a pretty big laptop. In no instance would my laptop need to touch a surface other than the mat though, even if it's hanging off the side the Matt is so thick it wouldn't touch the table the mat is on. You can see the magnets locations on the back and the slots they are located on are labeled on the top, also if you are wondering why most mats are this color and want to buy a black or Grey mat. they are this color and some yellow because it makes it easy to find electronic pieces and screws as Grey's, blacks, etc stand out color wise better contrasting the mat.