bekith set of 8 colors empty essential oil personal inhaler refillable aluminum and glass - nasal inhalers set with 20 cotton wicks and 4 opening tool bekith enjoy the therapeutic benefits of essential oils personally without diffusing into the entire room. for everyday use, just pull off the aluminum cap and hold the inhaler near enough to smell the oils' aroma. quality aluminum and glass construction mean you'll be able to use and refill them again and again. comes 8 colors essential oil personal inhaler, 20 cotton wicks and 4 opening tool