Flexible, thin foam frame allows effective cleaning in tight, hard-to-reach areas. Frame accepts a handheld handle or a Wilen Pro Flat mop handle for high area cleaning. Microfiber refill offers durability and long product life. Simply rinse away dirt with water after every use. Duster refill is sold separately,WIME224000. E224000. Wilen Professional Wilen Professional Microflex Duster.