Refill pack for the Superscreen Outdoor Mosquito Repellent hand held device from German manufacturer Tokai Gmbh.
 
The refill pack includes one 12-hour butane powered ThermaCELL and three insect repellent mats.
The repellent mats use a synthetic allerthrin formula which is inspired by repellent extracts found in plants. These mats last up to 4 hours each and change colour when they need to be replaced.
 
Contents
1x 12-hour ThermaCELL fuel cartridge
3x 4-hour repellent mat inserts