I have purchase the smaller set of these dumbbell that go up to 24 pound as a gift last year however the gift recipient need heavier weight so I buy this set . the reason to not give it a 5 star rating be : this set start at 10 pound and adjust to 45 pound and the lighter set end at 24 pound so I feel that this set should have start at a heavier weight . the only other reason it do not get the extra star be that the stand for these much be purchase separately and they be not inexpensive . otherwise , it be a great product overall . they do not take up much space . they be easy to use . I have coworker that be personal trainer that actually recommenede they when I be ask to make sure it be worth the money . I receive my order within a few day of order and do not pay extra for expedited shipping .