Acid free?? durable polypropylene material</br>Self-Locking Flip top non-Velcro closure</br>Includes one deck divider</br></br>Product Description</br></br>Deck box for holding cards in Deck Protectors sleeves. Acid free?? durable polypropylene material. Self-Locking Flip top non-Velcro closure. Includes one deck divider.</br><br/>http://www.amazon.com/gp/product/B00MVIA7UW