- Precise size for compact storage: external dimensions 101 x 70 x 20 mm (3.97 x 2.75 x 0.78 inches). The slim profile fits many standard cards while keeping them neat and easy to carry. - Durable tin-board construction: made from sturdy tin board that is reliable and stable in quality. The material resists breaking and scratching to give you a longer service life. - Protects and organizes: the case keeps cards in place, prevents bending and surface damage, and lets you stack multiple cases on top of each other for tidy storage. - Wide compatibility: designed to hold most cards — for example, playing cards, bus cards, phone cards, CDs, and other small parts or components. How this solves common problems - Eliminates loose, damaged, or misplaced cards by providing a dedicated, protective compartment. - Saves space and reduces clutter by allowing orderly stacking and compact storage. - Improves portability so you can carry cards without worrying about wear or loss. Typical use scenarios 1) Everyday carry: keep public transit cards, phone cards, or ID cards protected and ready in a bag or pocket. 2) Game nights and travel: store playing cards safely between uses and stack multiple cases for transport. 3) Workshop or parts storage: organize small components, CD media, or spare parts so they stay separated and protected. Practical details - Material: tin board for toughness and scratch resistance. - Function: protects, organizes, stacks, and transports cards and small items. - Size: 101 x 70 x 20 mm (3.97 x 2.75 x 0.78 in), suitable for many card types. This compact card storage organizer delivers reliable protection and tidy storage for a variety of cards and small items without adding bulk.