Like the other tip, I love these lashes instead of the strip ones. When you buy the box, you get both the glue and the lotion to get them off. They do provide instructions, but if you look on Youtube, or Eylure website, you will see a video showing you how to do them.
I have tried a few strip lashes, and I found they look a bit out there and bold, and a bit fiddly as you put them on your eyes, you need to get them even all over your eye lid. So I opted for these. You do have to put these on, when you have no products, eg. mascara, on your eye lashes and they come in 3 sizes (small, for your inner small lashes, medium, for your centre lashes and large for the outer corners). I have small lashes, so the small lashes in the pack were a little big. But the best thing you can do is experiment. For a natural look, I tend to use just the small lashes all over my eyes, but for nights out or special occasions I put medium or large on the corner when I do my eye liner in a flick, or put them all over my eyes in between the small ones for longer fake lash look.
I gave them 4 stars purely because they won't last 4 weeks, especially if you are like me, I have brown lashes so these stand out a lot, so I have to use mascara to blend my own lashes in with the fake ones. But if you are careful, and gently wipe them, I found I can reuse a couple of them. Like the other tips say, I wish they did more replacements, so if you find you don't have a enough eg. large ones you can just go and buy a few large ones without buying a whole new packet, but the packet always comes in useful if I ever get cut short any ways.
But experiment with these as I find them very versatile and can make a lot of different looks according to your day or night out.