Febreze Unstopables is a long-lasting fragrance for your car. To activate it, press the clip firmly upwards until you hear a click. Thereafter, fix it on the air vent of your car. To control the freshness, adjust the intensity of the fragrance. Keep the product out of the reach of children and animals. Once you have activated the product, you should not store it in the glove compartment or other closed container. You need to avoid direct contact with the plastic as it may be damaged. These powerful yet miniature car air fresheners have incredible odor blockers and odor fighters that fight all those scents and odors that have accumulated during your longest trips.