Thermacell C-4 Butane Cartridge Refill， 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>This 4-pack provides 48 hours of use in Thermacell Mosquito Repellers</li><li>Use when you have spare repellent mats</li><li>Butane-only refill， repellent mats not included</li><li>Turn it on… Mosquitoes Gone!</li><li>For use in Thermacell Repellers， Lanterns， and Torches</li><li>Can be stored for long periods of time</li><li>100% Satisfaction Guarantee on all Thermacell products</li><li>Package contains: 4 butane cartridges each lasting 12 hours</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51bXYB49m8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418VKzcYTTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61TWDKAWxCL.jpg" noproxy>