Pokemon Center Original Pokemon Card Game Deck Sleeves Connected World - Secret Staircase -

Size is approx. 9.2 by 6.6 by 1cm 

Additional product info: 
Deck Sleeves The World That Connects - Secret Stairs - Is Here! 
To protect cards from scratches, it is a protective bag where each card is inserted one by one! 
It is a set of 64 sleeves with 4 extra Deck Sleeves, so it can hold one standard deck of 60 cards!