Glad I never needed it.
Verified Buyer Reviewed by David from Seattle on Wednesday, September 2, 2015
I was told that these are not allowed on commercial airlines (even in checked baggage) - had sent to where I was staying in WY. The areas we were hiking had abundant evidence of bear- prints, scat. These were light to carry - put on the waist strap of our backpacks and worked fine. I did deploy an old expired canister that we had prior to the trip. Still worked well - putting out a foggy spray around 20ft or so. Some of the fog drifted back at me - unpleasant, but that's what it supposed to do. In WY - these guys are more than twice what they cost of STP (and deal flyer even better). I also ended up shipping it back home via ground transport. Even with that, still cheaper than buying in WY. Someone in our party said they rented one out of the car rental place at the Jackson airport. Didn't ask how much, but that was another option.