4 compartments to hold up to 320 double-sleeved cards* Rigid, stackable box with secure locking mechanism Secure locking mechanism Box resists breakage even when falling down Boxes are stackable Acid-free, no PVC
4 compartments to hold up to 320 double-sleeved cards* Rigid, stackable box with secure locking mechanism Secure locking mechanism Box resists breakage even when falling down Boxes are stackable Acid-free, no PVC