The appearance of the cotton rod is regular, full Good elasticity, not easy to leak after sealing. The pores are evenly distributed; the water absorption is extremely strong, the water storage capacity is , and the volatility is stable. It is insoluble in water, non-sticky, and maintains the consistency of the evaporation rate of the water agent. Product name: Replacement cotton swabs for portable humidifiers. Type: Humidifier Sponge Stick Colour: white Material: fiber cotton Size: about 73 x 7mm Package Contents: 100 x Humidifier Filters Stick Only the above package content, other products are not included. Note: Light 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.