Use the SMOKELESS coils to create an invisible SHIELD to protect you from mosquitoes while enjoying the scent of citronella. Ideal for camping, cottagers and patios, decks and backyards. Each package of coils comes with a metal tin, which provides protection against damage to the coils and can be flipped upside down to be used as a ashtray for the burning coil. Each coil kills mosquitoes for 5 hours. Includes 10 coils and two stands per package. PCP regulated.