with this I am "happy": easy to operate and you have to look not always, whether he "always right on it / dranhängt" (you can feel it immediately).
Also I would recommend to replace the "small" carabiner by ordinary key ring - with me a 50mm diameter.
Packaging: described in another recession as "pretentious". I see this as a bonus: it fits perfectly into a pack of cigarettes plus a lighter (of course you can also enter into a lot of other things ...)
And since the box is waterproof and has a way to attach ...
For me: 2 for the price of one! (So a box costs alone also about 5-6 euros).
