Came apart while using them [SEP] I bought a pack of 3. The first one popped half the top off while rinsing it out. The second one popped half the top half way through coloring my hair.<br />The last one I purchased, I used for over a year. I really wished I had saved it, while trying these. They are basically useless if I can't get color out of the prongs. I might as well mixed it in a bowl. Don't waste your money on these.