We are OBSESSED with these adorable car diffusers!!! These signature blue rose diffusers feature glass bottles with wooden tops. They are pre-filled with 6ml of a phalate free fragrance/diffuser oil blend. Simply remove the lid/plastic stopper, screw the wooden lid back on, and tip for 2-3 seconds to infuse the wooden lid with fragrance! You (and your passengers) will LOVE these.
 
You can control the strength/life of your diffuser by choosing when to re-tip/refresh it.