I am a 23-year-old female and I purchased this to help tone my arms. It does just that. I can easily fit these into my daily routine and there is a notable difference in my arms after a month of continual use. These are great quality and get the job done.
I wanted a heavier set of weights. I had a 10 lb dumbell already so I got the other one to make a complete set. I use them at least 4 times a week during my weight training session.