I’ve had them for 4 years and they are still great. The thing I liked about them is that they are less bulky than other brands I looked at (bowflex, Nordic track, etc) and were less expensive than powerblocks. I know a lot of people like those but I tried them once and they felt odd. The core fitness ones are the closest thing to regular dumbbells I’ve seen. Would definitely buy again (and I think they have a labor day sale going on right now)