Great protection from damage or loss of my Calmer plugs. Good quality product.
The capsule is great for putting on your keychain, you can easily transport it every where and the size is quite convenient. The only minus is the noise it makes on opening - it can be a bit annoying for very sensitive people. I like the available choice of colors and that they are in metal, not plastic.
Nice and handy to keep your flare audio products safe.