If you want a dumbbell that you can perform out until failure and drop (which I, personally, feel is silly) this solution is not for you. If you are performing workout routines that are under command / smart these will work fine. I like that they had been low cost to ship from Amazon. I am a past owner of the smaller SelectTech (the 2.five-20lbs types) and I purchased the 552 simply because I desired heavier points to raise. My websites: Adjustable Dumbbells For Sale |