Gelert mosquito holder coils these gelert mosquito holder coils is an economical way to protect yourself from mosquitoes and biting insects each coil lasts between 8 9 hours and you get 10 in the pack much like an incense stick you light a coil and it releases an active insect repellent recommended for outdoor use only two stands included for safer burning mosquito coils 10 coils two stands included highly effective each coil burns for 8 9 hours gelert branding multi