Size is approx. 34.0 by 24.0 by 1cmAdditional product info:Pokemon Card Game Collection Refill features similar items! With 10 refills, up to 180 cards can be stored! The 9-pocket refill is compatible with both 3-hole and 4-hole types. It has a flap feature that makes it easy to insert cards and prevents them from falling even when turned upside down. Cards placed in the separately sold Pokemon Card Game Deck Sleeves can fit, with each pocket holding two cards, and the high-transparency sheet enhances the appearance of card illustrations. Additionally, a convenient index sheet for organizing is included, which can be used on both sides!