Thermacell Backpacker Mat-Only Refills effectively repel mosquitoes by creating a 15-foot zone of protection when used with the Thermacell Backpacker Mosquito Repeller. This Refill does not include fuel cartridges.

• Includes 24 (or 48) hours of mosquito protection refills

• Mat-only refill for use in the Thermacell Backpacker Mosquito Repeller

• No spray and no mess. Scent-free and DEET-free.

• Active ingredient is Allethrin, a synthetic version of a naturally occurring repellent found in chrysanthemum flowers

• Package contains: 6 (or 12) repellent mats lasting 4 hours each