1. Material: black cardboard 2. Style: push-pull 3. Functional use, photo collection, DIY homemade gifts (send couples, parents, children) 4. Just do it yourself according to your own ideas, you can write text and attach some photos to leave good memories 5. Strong toughness, no cracks after repeated folding 6. Dimensions: 20x9.5x4.5cm 7. Note: does not contain glue
