The Rubbermaid Commercial Trapper® dust mop has a blend of post-industrial 4-ply cotton and synthetic fibers for better launderability, durability, and dust retention than traditional cotton dust mops. Looped ends resist de-plying and minimize linting. Envelope end-style backing for easy frame insertion with no strings to tie or break. Synthetic backing is colorfast and resists rotting. This floor mop is suitable for commercial and industrial applications. Handle sold separately.