Yoyo is a personal scent carrier and diffuser for perfume, essential oil or other fragrances. Drop your scent on the ceramic stone (included) and it will passively diffuse the scent over a long time. Place beside you on a table or desk while you are working or perfect to use on the go in your pocket, purse, suitcase, gym bag or in the closet or a drawer. POSM Signage mailed separately. Colors: Assortment of White/Black/Gold.