Replacement spool for Black & Decker string trimmer

I just purchased a new spool for our B&D trimmer. I noticed the line that was formerly blue, was now white-no big deal. However, it sure didn't work as the previous spools had. I had to keep removing the cover to extend the line. Sometimes it would work, sometimes not. This is the first time we have had the problem. I am very careful when installing a new spool, to keep the line tight so it doesn't unwind. If I had the time, I would buy bulk line and wind it myself.

This AFS string came with my worx's lawn mower, edger and weed eater and it lasted me for 2 years of course the first year I didn't really know what I was doing but this year I just put in the extra one that I bought and if one spoil can last Me 2 to 3 years I say that's a good product and it's easy to remove and snap back in and you're back to work, I love all of the worx's products I have several of them