Features:
Material made from cotton， good quality.
Suitable for USB Water Bottle Caps Humidifier.
Can be sheared in how long you need.

Specifications:
Color: White
Material: Cotton
Length: About 8.5cm/3.3\'\'
Diameter: About 1cm/0.4\'\'

NOTE: All the sizes are measured manually， and mistakes may exist， please understanding that， thank you!

Package Includes:
2x Replacement Filters