Friends, family, neighbors and more will love congregating on a patio or deck without the annoyance of biting mosquitoes, and they wont even notice that the Patio Shield Mosquito Repeller from Thermacell is at work keeping the bugs away. Although decorative in graphite, the Patio Shield Mosquito Repeller remains otherwise inconspicuous as it creates a 15-foot mosquito-free zone without DEET spray, smoky candles, open flames, unpleasant smells, or expensive professional treatments. Ready to protect for 12 straight hours, the highly effective repeller comes with three repellent mats and one fuel cartridge, all of which fit together in a cordless, compact and lightweight unit that blends beautifully with your tabletop, flowers, greenery, and glassware. From Thermacell, the expert in area mosquito protection, the Graphite Patio Shield is simple and clean to use, keeps mosquitoes away without spray, and creates a powerful invisible barrier against mosquitoes. 12-hours of mosquito protection Satisfaction guaranteed for one year Fuel cartridge lasts 12 hours each Repellent pads emit Allethrin, a synthetic version of repellent in chrysanthemums; blue scent-free pad lasts four hours and turns white when replacement needed; pads self-store in Patio Shield Simply designed and easy to use, Patio Shield an ideal gift for new homeowner, hostess, retiree, college graduate, gardener, camper or young adult moving into first apartment