The Aromapod Essential Oil Diffuser is simple to use and uses natural airflow to disperse essential oils. Add 5-10 drops of essentials oils to the reusable pads and insert into the unit. Product includes 3 aromaPods and 5 reusable refill pads. Additional Refill Pads available. Hang on or stick to any surface. Perfect for home, office and car. Size: 4 cm x 4.5 cm. Made in Canada. How to use: Simply apply 5-10 drops of your favourite essential oil or blend of oils on the reusable pad and insert into the AromaPod. Within minutes you will begin to experience the soothing scents and benefits of your chosen oil. A refill pad may be used until it hardens and/or discolours.