Covergirl's Perfect Blend Pencils are for lining eyes and they do a great job especially with the little sponge tip on the other end that smudges the liner into the eye. This makes for a nice smokey eye. I don't often use it as a liner however. Instead, I use it as a brow definer. I take medication that made my hair fall out and my eyebrows are pretty non existant now. The hair on my head has grown back, but my brows have only grown back in disconnected tufts. I've tried regular brow pencils but the lead is hard and looks like I drew a brow on my forhead. The Perfect blend pencil is different. It is creamy instead of hard and makes a nice soft line. I can feather it to make it look exactly like a real brow. Even my hair stylist was amazed that I don't have eyebrows.
The product is water resistant and doesn't come off unless you really rub hard or use makeup remover. It works well as a liner and as a brow definer and looks very natural. I use the mink color because my hair is dark brown with grey and it looks very good.