I got these in a few weeks ago and are just now tried to use one, I can't get it screwed in, it's a lot smaller than the one's I've purchased before, and doesn't have Aspire written on the back of the package, first I was thinking it may be the 1.6's instead of the 1.8's, but I've had both and didn't notice any size different, there are so small they won't screw in, any advise would be appreciated.



