I worked with these as well (Hey, plittle!). You can throw these through windows and into structures, they're not fragile at all. There are some videos of these guys in operation at http://distrob.cs.umn.edu/cots.php
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I worked with these as well (Hey, plittle!). You can throw these through windows and into structures, they're not fragile at all.
There are some videos of these guys in operation at http://distrob.cs.umn.edu/cots.php