Flexible & Durable: PP material handle which gives you a comfortable grip. It is removable and durable, very convenient for people to hold tightly. This brush owns a good cleaning power, which can clean the door and window sliding rails, gaps or more places.Cleaning Function: You can use a dry brush or a wet brush to help you according to actual situation to satisfy your needs. When the stubborn stains are difficult to remove, you can use a wet or dry brush to scrub them, brush contains 2 polypropylene bristles.