The small box is cute,3.9 X 3.7 X 3.1 inches - holds approximately 100 cards Double layer reinforcement for durability,Exquisite craftsmanship and perfect card storage Multi purpose - compatible with magic: collect MTG, PTCG, YuGiOh! There's more. Durable - The exterior is made of waterproof PU leather, which is very textured and the lining is very soft. Safety design - self-locking cover with magnet can keep the box closed during transportation. No more cards fall everywhere..