Almost instantly have to go and buy some more it is that good! Does exactly what it needs to, to great detail. Put in a mug of boiled water for 3 minutes, and it becomes very soft (but not that hot), press against what you want to make a mould of, wait for it to cool, then stuff that mould with some sort of putty (Green stuff RIP, Milliput) and now you have two of what you started with. Good for making one copy at a time, as it is always best to re-soften the Blue Stuff for your next mould
Quality: 5
Value for money: 5