Dura Pro Blend Mop outlasts and outperforms cotton. Premium, cut-end, four-ply blend of cotton, rayon and synthetic yarn delivers excellent absorbency as well as good performance and durability. Material is made with a high percentage of post-industrial cotton and 35 percent PET plastic. 1" headband fits side-loading handles (sold separately). To clean, only bucket-wash and wring the 24 oz. mophead. Laundering is not recommended for the cut-end fibers.