MOSQUITO PROTECTION THAT WORKS: Thermacell effectively keeps mosquitoes up to 15FT away. Works fast, get max protection in 15 minutes. Easy to use. This refill pack is compatible with all Thermacell fuel-powered repellers (except the Backpacker)., LONG LASTING DEFENSE: Scent-free refills provide on-demand, consistent repellent protection that doesn’t weaken over time., REPEL MOSQUITOES IN AIR, NOT ON YOUR SKIN: Repel mosquitoes without DEET sprays or lotions on your skin. Unscented repellent mats last up to 4 hours each and change color when time to replace. No smoke, no flame and easy to refill., PROPRIETARY FORMULA: Independently tested and EPA reviewed for safety & effectiveness. People and pet friendly., THERMACELL GUARANTEE: Backed by the Thermacell Guarantee. See packaging for details., INCLUDES: Ten 12-hour fuel cartridges, and thirty 4-hour repellent mats.