1 Cal King or King Mattress Bag. Fits All Pillow Tops and Box Springs. Fits All Pillow Tops and Box Springs. Professional Grade, Heavy Duty Non Vented Eco Friendly Plastic. Ideal for Moving, Storage and Peace of Mind. Protect Your Bed From Insect Infestation, Stains, Grime, Mold and Mildew. Proudly Made in America! Cal King Mattress Protection. Ideal for Moving and Storage. Protect Your Bed from Stains, Mildew, Mold and Accidents. Made from Recycled Materials. Toughest Mattress Made in America! Professional Grade, Heavy Duty, Non-Vented Mattress Protection Easy to Slip over and Seal