These chapstick holders are one of those simple inventions that you don't realize you need until you have them! I got the 10-pack and they've been incredibly useful. Each one is made of this stretchy neoprene material that holds your lip balm securely without being too tight. The 4.7x1.5 inch size fits most standard chapsticks and lip glosses perfectly. What I love most is the lobster clasp keychain - I've attached them to everything from my car keys and purse to my gym bag and work lanyard. No more digging through the bottom of my purse for lip balm! The different colors are great for color-coding - I use pink for my everyday chapstick, blue for my car keys, green for my work bag, etc. They're surprisingly durable too - I've been using the same one on my keys for months and it hasn't torn or stretched out. The material is easy to clean if it gets dirty, and they're cheap enough that if you lose one, it's not a big deal. I ended up giving a few to my sisters and they loved them too. If you're constantly losing your lip balm or just want to keep it more accessible, these little holders are totally worth it. Such a simple solution to a common problem!