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These are the strongest magnets I have ever seen! But they make no noticeable change to the water. So if you're thinking you're going to get that slick feeling on your skin like you do with a salt based water conditioner, you're wrong. If you are buying these magnets to soften your water, don't waste your money. If you're buying these magnets to fool around with, because they are the strongest magnets in the world, you will be happy but you could probably buy them cheaper some place else.