• DeckSlimmer is the world's first innovative deck case ever made. TOYGER has spent over six years to develop something universally loved by everyone, regardless of gender, age and all others. If you want to put a large amount of cards will be magically thinned. (Patented Research Agency: Patent Office; Research Year/Date of Obtainment: August 18, 2023, Patent No. 733896) • External Dimensions (Closed): Length approx. 8.0 inches (20.3 cm), Height approx. 4.0 inches (10.2 cm), Thickness approx. 2.1 inches (5.4 cm) (Measured at the bottom) Maximum Size for storing cards (or sleeves) : Approx. 3.7 inches (9.5 cm), Width approx. 3.0 inches (7.4 cm) • Thickness of card compartment when closed = Thickness of card bunch: Approx. 3.1 inches (7.8 cm) (capacity will not vary depending on the size of cards) • Storage Capacity: Approx. 270 sheets (no sleeves); Approx. 140 sheets (single sleeve); Approx. 120 sheets (double sleeves); Approx. 100 sheets: (triple sleeves) • Card Games: Almost all of the card games on the market (Yu-Gi-Oh, Pokémon Card Game, Duel Masters, Magic: the Gathering, Weiss Schwarz, Vanguard, Wycrosse, Battle Spirits, Buddy Fight, Dragon Ball Heroes, etc.)