The BCW 2 Piece Slider Box is made of crystal clear, high impact polystyrene and features a friction fit design. Each pack comes with two 35 ct. Card Slider Boxes. The top and bottom are notched so that the boxes are stackable. Use this box to store, protect and display collectible trading cards like: baseball cards, basketball cards, football cards, Magic The Gathering, Yu-Gi-Oh, Pokemon, Disney Lorcana, and others.