Product description JUNESHE Crib Mattress Protector with Zipper Toddler Mattress Protector with Zipper Your good choice for Crib size mattress,Pack and Play Mattress,Baby Mattress. Heavy Duty-The thickness of film is 4 Mil, it's strong enough to resist tear and puncture. Waterproof-No vent hole and large zipper closure make the mattress bag waterproof. It can be used couples of times with the extra thick PE film. Waterproof Crib Mattress Protector Zipper Mattress Protector for Moving and Storage Toddler Mattress Cover Multipurpose Crib Bag is Suitable for mini crib mattress baby’s mat infant size crib mattress dog bed outdoor lounge outdoor sofa cushion pack and play mattress toddler mattress memory foam Baby Mattress Protector Size: 52.5×28×6.5 inches Why a crib storage bag is needed? Mattress is expensive. When you move or store up mattress, a bag is needed to protect it against dirt, dust, pets scratch, stains, moisture and water, grime, odors and other damage. How to choose a right mattress bag? Size-You need to carefully measure the size of mattress before buying. Thickness-Usually, the thicker the bag is, the more heavy duty it is. For long-term storage and moving, you'd better choose 5 Mil or more. Convenience-You can save time and energy if mattress bag has zipper design. Protection-You need to realize what sort of things you want the mattress bag or cover to protect against. JUNESHE Mattress Protector Crib for Moving and Transportation,Shipping Heavy Duty Baby Crib Mattress Cover with Zipper Extra Large Storage Bags :Zippered plastic crib mattress cover with 4 mil thickness is tear and puncture resistant and strong enough for mattress moving and long-term storage. Crib Mattress Protector Waterproof for Moving Extra Protection : The baby mattress cover can effic