repellent wristband. Silicone rubber wristband infused with 100% natural citronella oil. Repels mosquitoes, flies, gnats, no-see-ums and fleas. Wristbands last for 6 days or 150 hours of exposure. Comes in a reseal able Package to preserve effectiveness when not in use. All-natural, non-toxic, DEET-free and waterproof. Just slip on a wristband and go. Mosquito is so easy, you won't even know you're wearing repellent. Enjoy the outdoors bug-free without the use of messy, toxic bug sprays.