Premium Cut-End Blend Mop Outlasts And Outperforms Cotton. The 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 16 Oz. Mophead. Laundering Is Not Recommended For The Cut-End Fibers.