Lower back exercises?

What exercises do you girls do for lower back? I'm pretty happy with upper back... but once you look at lower, there's absolutely no support there. I need to work on that. Any advice?

Also, I'm dieting for a bikini show so my diet is ON POINT.

I started at 115 back in January and I'm down to 107.8 as of this morning... I just need to get rid of the lower back jiggle.

do hyperextensions to failure, about 4 sets and sraight leg dead lifts does good on the lower back as well as hamstrings also.

off topic, but i love your tats.

thanks!