Sufficient quantity: You will get 40 pieces of white humidifier filter elements, about 1 piece each. 10 cm/4 inch length and 0.3 inch diameter, the quantity is enough to meet most of your needs; practical tools for office, room and travel Good water absorption: The humidifier filter rod is characterized by good elasticity, uniform pore distribution, strong water absorption, good storage capacity, and good volatilization stability High-quality materials: The humidifier stick is made of filter material, which is insoluble in water and not easy to stick. It supports most perfumes, liquids and other water solvents. Easy to use: The humidifier wick is easy to disassemble and install, and the installation can be completed in a few seconds. Please soak the filter rod before inserting the humidifier; it is recommended to use tap water instead of dripping into essential oil (if necessary, add a small amount of essential oil)