Lursa and B'etor are a pair of Klingon sisters who...oh hell I don't even remember. I did follow TNG religiously back in the day, but little about these ladies sticks in my memory besides...well...the obvious.
The back of the package indicates the sisters are from the influential Klingon House of Duras and caused the Federation all sorts of headaches and probably other uncomfortable feelings too.
I do wish I had paid closer attention to Playmates' Star Trek offerings back in the nineties. I had a couple from the original series, and a couple from DS9, but I didn't actively collect them. I've avoided getting into a Playmates Star Trek collection thus far but hey, they are pretty cheap and easy to come by nowadays, and with these sisters to spark my...interest...once again, this might be the start of something (dare I say it?) big!