I bought this foam mainly to dampen different things like trem bridge, guitar in the case and use it for many things.
It is interestingly pre-cut/perforated so you can actually tear it straight without the use of a knife, if that is what you need. You can make many almost identical small foam cubes very fast or make a custom shape. It is what I wanted as I will not use it on big, curved surfaces where the perforation could be a problem as it would open the gaps from the cuts and would not spread the pressure evenly, but it can hold some weight when on flat surfaces. Good price and quality ... but have not used it for long.