***We offer combined shipping when you purchase more than one item from our Solid Factory store.******NEW UPDATE!***Because of the growing popularity of our card tray holder/organizer, we've added three new sizes making one big happy family!Card Slot Dimensions: Width x Depth (in millimeters)No. 50 Tray: 50 x 54 (approx. 2.0" x 2.1") (ASIN: B07PJ1PBYZ)No. 63 Tray: 63 x 68 (approx. 2.4" x 2.6") = Original size!No. 68 Tray: 68 x 74 (approx. 2.6" x 2.9") (ASIN: B07PFRKX43)No. 78 Tray: 78 x 86 (approx. 3.0" x 3.3") (ASIN: B07PDTQHCP)Not sure of which card trays to use We came across a detailed list of games and their card sizes on BoardGameGeek's forum.***END UPDATE***In the base Settlers of Catan game, there are 120 cards split into 6 types. If you play the Cities and Knights Expansion, which is amazing, this puts the total to 193 split into 12 types!That's a lot of cards! And we all know these cards tend to get scattered in the course of the game - adding further stress to your already distressed relationships...if you're playing Catan right ;) But there is hope! Introducing Solid Factory Card Tray/Box Organizer! This product contains many thoughtful features for the Catan player. For example, these trays are stackable so you can save precious table space. And not only do they fit in the original game box, they can be snapped together forming a card box for easy storage.Each order contains a pair of 3-card trays. So make sure to order 2 pairs if you play the Cities and Knights Expansion!Thank you!Team Solid FactoryP.S. If you play with sleeved cards AND want to use these holders as boxes, you'll want to order 2 pairs because the sleeves add too much thickness and need to be distributed into 2 boxes. At least you'll have 2 resource banks which is nice! Thank you!