Collect these super-heroes from more than 20 designs! Always have yourself a pleasant trip under this refillable vent diffuser that has an exclusive cute design. How To Use: 1. Open the package 2.Insert the clip into the container body 3. Put the cotton pad inside the container slot 4. Push and clip on the vent. Package Includes: 1 piece of vent clip container body + 1 piece of black rubber coated metal clip + 2 pieces of lemon flavour cotton refillable pads. Note: Once the pad dries up, you can refill it with any of your favourite essential oil.