They don't stay on long & eyeliner in tube dries up quickly [SEP] Easy to USE bc they stick to the magnetic glue. Easy to REMOVE bc they fall off after about an hour. The thickness of the lashes is perfect and the quality is great; they don't look cheap. I really got a lot of compliments! One con is that there's only enough of the magnetic mascara for TWO or THREE uses! I had to use strip lash glue because there wasn't enough magnetic eyeliner in the tube. And what was left in the tube dried up quickly. Wassagpoing on?