20mm diameter ultrasonic atomizer plate povides with more finer particles that your desk or other platform can be well protected against dampness.Easy to use. After charge the frequency driver board, press the key to start.It can work well over the water's surface, absorbent sponge or towelwith more finer particles and higher spray level.Widely used in the ultrasonic atomization devices, USB humidifier, perfume atomizer, aromatherapy atomizer and other atomization devices.color: as shownMaterial: PC+metal+ceramicSize: atomizer diameter 20mmPackage Contents:2 x Ultrasonic Atomization MakerOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Time of shipment:All of product we can ship out within 5~8 weekday