I love these for when I go camping, I always have one on me, I hang one on my tent door zipper and one from the little hook that hangs town from the top/center piece inside my tent. I have never really had any mosquitos or bugs inside my tent, by doing this. I also love that you can remove the rubber plugs to choose how strong u want it to be/how long you want it to last. I’d bring a pair of tweezers though bc they sometimes break off without pulling the little plug completed in order to expose/open the hole for the repellant to escape. If you just grab the little piece that’s still stuck in there with tweezers or even a paperclip, it isn’t hard to remove. I have used other wrist bands and all types of repellants, but this one has to be my favorite based on the fact that my tent, located deep in the woods of New England, remains bug-free. My friends and family have purchased these after going on camping trips with me and witnessing their effectiveness!