Are these the kind you are referring to? Link The seller said the diameter is 2 1"8 and the height is 1 7"8. Does that sound right? I just want to make sure before I buy because I don't want to waste money again. The diameter seems a bit big, is that ok? I also saw this two pack Link but it looks like the same one to me and the six pack is only a little over a dollar more, which I thought would be good in case I make a mistake while cutting it or something.