They work as they should. The only problem is the plastic container, they break easily and the lid falls in your pocket. The cap has a cut-out for a lanyard or carabiner, but I would advise against it, especially off-road, as you are more likely to lose it in dense undergrowth or on a hiking trail. The mech itself is fine, but I'd recommend another item to store it like an empty cigar pipe or packaged in a fire set/tin can. I have mine in my pocket at the moment to carry the edc. It is also good for blowing off dust and dirt from work pieces. However, I wouldn't recommend you use it for electronics because condensation and moisture from your breath will collect inside the bellows.
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