Bite Block Naturals Scented Patches is a natural, hypoallergenic, and paraben-free anti-mosquito repellent patch that repels mosquitoes for up to 6 hours. Bite Block is the safer way to keep mosquitoes at bay! Perfect for: Active kids, teens, and even adults! Peel off patch and attach on any clothing or nearby objects like strollers, walkers and bags. Store remaining patches in the resealable bag for future use.