The Zits Pop n' Play Pimples come in packs like those pictured above and contain easy peel off stickers that you can put on your body. They have a variety of sizes, so you can have small ones and big ones. They are safe and non-toxic. It is sometimes a little tricky to pop, and sometimes when you do, you get that exploding effect (kinda like the real thing). I popped one of them on my daughter, and it got in my hair and all over my glasses. Yes, it was gross, but my girls and I were dying of laughter by the time we were done.