1. The appearance of the sponge stick is regular, full 2. Very flexible, water is not easy to leak after sealing the bag.3. Porosity is evenly distributed; The water absorption is extremely strong, the water storage capacity is large, and the variability is stable.4. It is not soluble in water, does not stick and maintains the consistency of the evaporation rate of the aqueous medium.5. It can be matched with various kinds of perfumes, liquid medicines and other water solvents, filter and store water, and is non-toxic. Product Name: Replacement Cotton Humidifier Sticks Type: Humidifier Sponges Size: 8 x 200 mm Material: Slim Color White Package Contents: 50 x Humidifier Sponges Only the above package content, others 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 error is +/- 1-3cm.