Enough for normal use and replacements; it is recommended to replace aromatherapy pads based on frequency of use. One Size: Our essential oil pads measure 45 x 25 mm / 1.78 x 0.98 inches and fit many humidifier models. Relax: Place our essential oil pads in your humidifier; these scented inserts help create a relaxing atmosphere or an uplifting environment. Easy to Clean: Our essential oil pad refills are easy to clean. Remove the scent pad from the humidifier, rinse with lukewarm water, dry with a clean cloth, and return it to the scent compartment to save time and energy. Long Life: Made from high-quality composite material, our pads are durable, reliable, and lightweight, designed to last for extended use. Color: White. Material: Composite material. Package Contents: 50 x Unscented Replacement Pads. Note: Other products are not included. Lighting and monitor settings may cause slight color variations compared to the actual item. Measurement allowance is +/- 1-3 cm.