(3 Units/6 patches) The Mosquito Patch is a new kind of insect repellent. No more covering your eyes to spray harsh aerosol repellants. The Mosquito Patch is a small, 75mg B1 Vitamin transdermal skin patch that is easy, safe, spill-proof, light and lasts for 36+ hours. Just slap it on and get the most out of your outdoor adventures. Only $3.33 each as packaged at a value of 3 for $10.00!