【Designed for Large Card Collections】：This 2-row cardboard card storage box is designed specifically for bulk trading card organization. Each box holds up to 1800 loose cards or approximately 400 standard 35pt sleeved cards, helping collectors keep large sets neatly sorted, visible, and protected in one place. 【Sturdy Cardboard Construction】：Made from heavy-duty white cardboard, this storage box provides a strong and stable structure for long-term card storage. Reinforced walls and base help prevent bending, collapsing, or deformation even when fully loaded with cards. 【Tool-Free, Quick Assembly】：All cardboard boxes are shipped flat in a single carton and can be quickly assembled without tools or adhesives, keeping them protected during transport. Once assembled, the box maintains its shape and rigidity for everyday use and repeated access. 【Optimized Interior Size for Card Protection】：Interior dimensions: 13.78" × 6.5" × 3.94"/Exterior dimensions: 15.75" × 7.09" × 4.53". Designed to accommodate standard trading cards, sleeved cards, top loaders, and magnetic card holders, giving collectors flexibility to organize different protection formats without forcing or overcrowding. 【Focused Use for Trading & Sports Cards】Includes adjustable dividers for easy sorting and labeling. Ideal for sports cards, trading card games, and collectible card sets such as MTG, baseball, basketball, and football cards. Not intended for heavy tools or non-card storage items. 1600 Card Storage Box