I really like these eyeliners, the silver stays on my waterline all day. They're not totally smudge-proof but they don't transfer to my crease or anything either. For me they have just enough staying power to last all day but don't take industrial strength makeup remover to get off. Honestly, the dark colors are all pretty similar, I probably don't need green/black/navy/grey/brown/purple. But, I figured that by the time I would have bought all the lighter colors individually I might as well just buy the whole set.