Description: 【Sufficient quantity】you will get 20pieces humidifier filter wicks, fit for most portable personal USB mini humidifiers, please make sure your length and diameter before purchase. 【Good water absorption】the humidifier filter stick is characterized by good elasticity, uniform pore distribution, strong water absorption, good storage capacity, and volatilization stability. 【Quality material】 the humidifier stick is made of filter material, insoluble in water and not easy to sticks, supports most kinds of solvents, help your humidifier work better. 【Extend the life of humidifier】come and replace the filter with humidifier sticks, when the humidifier produces less steam or even stop working, prolonging the life of the humidifier. 【Easy to use】humidifier wicks are simple to remove and install, allowing you to finish installation in few seconds, please soak a filter stick to wet completely before inserting to the humidifier. Specification: Material: Fiber   Package Includes: 20 Filter Swab Note: Please allow slightly errors due to manual measurement and different monitors.