Purchased for a Wheel that needed Balanced. Used 4x It seems, these Balanced the Wheel. Surprising after 1yr, they were all still in place. Haven't tried Removing.For the Price, there were a Lot of these in the Package, not sure though these seemed to be a Great Value?If you use these, You will have to worry about them Singing 'Stuck on You". Ok, not really. Though, they don't appear to be a waste of Money.