Thermacell Mr000-12 Repellent Refilloriginal Thermacell Mosquito Repellent Refills Effectively Repel Mosquitoes By Creating A Scent-free 15 Ft Zone Of Protection When Used In Fuel-powered Thermacell Repellers. Ideal For Use While You Are Camping, Hunting, Fishing, Gardening And Around The Backyard.features: Includes 12 Hrs Of Mosquito Protection Refills For Use In Fuel-powered (No Suggestions) Repellers, Lanterns And Torches Each Repellent Mat Lasts Up To 4 Hrs And Each Fuel Cartridge Lasts Up To 12 Hrs No Spray And No Mess Scent-free And Diet-free