I've had these kegel balls near a week, and have used them 3 or 4 times before writing this review. I was given a discounted price in exchange for my honest opinion, so I wanted to be sure.
I was pleased to find that these are not incredibly large, and that the weights aren't too heavy, the texture is very smooth, and the pull cord is sturdy.
I washed them up and tried them in the shower. I stay in the shower an average 10-15 minutes, and that's a good enough beginner time frame for me. The balls were somewhat difficult to insert without lubricant (I won't make that mistake again) but once they were in place, the rest was simple.
I could feel them in place, and with contraction of my muscles, I could feel them raise or lower. When my shower was finished, I gave the cord a gentle pull and easily removed them, washed them, and was done.
Now that I've given them a few tries, I can already feel a small difference, and know there will be increased improvement. My partner has never complained about my tightness (in fact, just the opposite] but he did make a comment which leads me to think he already feels a difference.
As a bonus, I feel a slight muscular pull in my back and abdominal muscles as well, noting that I use those muscles when contracting my PC muscles. My posture is better considering I stand while using them. Maybe if I use them more often, I'll have a report to share regarding that:)