Quantity: 5Material: FleeceReplacement Dust Bags For Bosch 3931 Series VacuumsRecommended For Vacuuming Fine Particles Like Drywall Dust, Plaster, Cement, Soot And MoreSynthetic Dust Bags Have High Air Permeability Which Reduces Performance Loss And Offers Higher Resistance To Tearing From Moisture Or ImpactEach Filter Comes With A Port Cover Which Securely Closes Opening Of The Filter Bags And Keeps The Dust And Debris Inside During The Disposal ProcessFor Dry Pick-Up Only