These are disposable, so they're convenient to attach to summer jackets or other outerwear, saving you a trip to the dry cleaner. These are leftovers from what I used, and I'd like to pass them on to someone who needs them. The difference between the pink and blue ones is unknown. The outer bag has some stains. No packaging (box). Pink: 7 pieces (opened) Blue: 10 pieces (unopened) They've been sitting in a lingerie case for years, so I can't guarantee the adhesive strength. I apologize, but please understand and consider this. I will ship via Yu-Packet Post Mini, so please be aware of that.