This is an ingenious creation! Gentle on my hair (which I absolutely love) yet effortlessly makes just the right size curls. Being new at doing this, I need a little practice to get it just right. The first time one size was tighter than the other creating different size curls. The third time I had a noticeable part in the back that I’m not sure how to prevent but will check out YouTube videos. It’s funny looking to my husband, yet kind of cute at the same time. I also purchased several of the clips which seem to be high quality. Nothing rough to catch in my hair, and they hold hair well. I recommend all of their products.