4-in-1 Multifunctional: The soft brush surface is made of flannel, wet and dry for dual purposes. The head is equipped with a small brush, which can be used to clean narrow spaces such as crevices. The tail is equipped with a long and small brush, allowing you to scrub the large brush without washing it with water, saving cleaning time. Wet and Dry, Dual Purpose: The multifunctional dust brush cleaner has both dry and wet functions. Dry use can be used to clean screens and lint, for dust removal and maintenance cleaning. It can also be used with the brush wet, to clean windows and tiles, improving dust removal efficiency and dealing with years of dust accumulation. Efficient Cleaning: It can also be used as a cotton brush to remove dust and hair from clothes, sofas, carpets, etc. It can be wiped for light dust removal and maintenance cleaning, or moistened for deep cleaning. Easy Installation: The cleaning brush can be installed by simply inserting four handles and is equipped with a detachable extension handle, which can be adjusted to its actual length. Wide Range of Applications: The multifunctional screen brush can be used in homes and cars. At home, you can clean screen windows, sofas, chairs, desks, ceramic tiles, etc. The brush can be used to clean windows, chairs, etc.