What is the likelyhood of being struck by lightning on the golf course?
every school system is going to use different types, we need more info to help. pics of another one in the school would be very helpful. however 300 for a casing does seem to be a bit high even for a safety device. in many cases you can get the entire extinguisher for a third of that.
What about the Hans (head and neck support) device? If Dale Earnhardt had been wearing one the day he died, would he still be a live today? Run Hans device/nascar through your search engine. Good Luck!