They're also unbelievably strong when they're completely rolled up and incredibly weak when they're not. Although a tiny piece of ceramic at just the right spe

They're also unbelievably strong when they're completely rolled up and incredibly weak when they're not. Although a tiny piece of ceramic at just the right speed will shatter any window. And I recommend a spring-loaded window breaker, as opposed to having to, like, physically hit the thing against the window.