Description: Atomizer piece ceramic wafer using the latest technology with the traditional nickel or titanium electrode atomization chip compared to ceramic chip special protection electrodes acid and alkali resistance, corrosion aspects of cavitation superior performance, high strength with electrode difficult to scale, practical and long service life. Features: 100% brand new and high quality. Ultrasonic atomizer generates negative ions to improve air quality dust sterilization. Humidification, beauty, clean water into a cool mist. Suitable for all 20MM humidifier and nebulizer use. Note: We suggest you put the original piece ripped out the old atomizer, coat removed, measure the diameter of atomized tablets. Buy according to the size of the diameter! Specifications: Product Name: Ultrasonic Ceramic Disc Sheet Atomizer Plates Material: Ceramic Paper Dia: 20mm/0.79" Color : As Picture Shown Quantity: 1 Set(5 Pcs) Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (no retail package) 5 x Ultrasonic Ceramic Disc Sheet Atomization Tablet 20mm