Box Spring Cover / Box Spring Encasement, Queen (60x80x9) - Protection Against Bed Bugs, Dust Mites, Allergens, Mold, and Spores. WATER RESISTANT. DURABLE - long lasting fabric, that wont tear. BUG BLOCK SYSTEM - prevents bed bugs. PROTECTION - against Dust Mites, Allergens, Mold, and Spores.