This is a set of two dragonfly-designed, strap-type insect repellent products. I accidentally bought too many. I will be sending one unopened pack containing two. Length: Approximately 5.5 cm Width: Approximately 6.5 cm From my experience, I don't think it's very effective against mosquitoes. There may be individual differences. I'm not sure about other insects. Some people say it's good to use it with insect repellent sprays. - Type: Strap type - Design: Dragonfly - Colors: Black and Yellow - Function: Insect repellent effect - Target: Bees, stink bugs, horseflies Thank you for your interest!