Adequate Quantity: The package you will receive includes 120 pieces of triangular diffuser refill pads, enough for your daily use and replacement; we recommend that you replace them monthly or watch out for pad odour and discolouration, using old pads will reduce the efficiency of your diffuser use.Proper Size: Our triangle essential oil diffuser pads measure approximately 1.77 inch(45mm) wide, 1.77 inch(45mm) long, 0.16 inch(4mm) thick and will fit most home humidifiers, air purifiers, essential oil diffusers, travel diffusers and more(UHE-PAD-1, ARMH-110). Please check the size carefully before ordering our diffuser refill pads.Quality Material: These aromatherapy pad refills are made from quality fibres that are comfortable to the touch and they are lightweight so you can easily carry the essential oil pads for your humidifier around with you for long lasting service.Easy to use: To use, simply remove the old pad from the diffuser and place the replacement pad in its place, then drop 3-4 drops of essential oil on the refill pad and enjoy the aroma of the oil can relieve symptoms of stress or anxiety.Relax Yourself: You can place our scented oil pads in your house, office and car and the diffuser will be able to release the aroma of any scent you choose, helping to create a relaxing or uplifting environment for you, reducing stress and simplifying life.