Thermacell Mosquito Repellent Refill includes 48 hours of mosquito protection refills. Use these refills in fuel-powered Thermacell Repellers, Lanterns, and Torches. This product contains 12 Mosquito Repellent Mats and 4 Butane Cartridges. Great ideal use for camping, hunting, fishing, gardening, and around your own backyard.