Features: The transparent design and size variety of these hard plastic zipper case encourage better organization habits, creating a more organized and efficient environment. You can share the plastic clear zipper bags with your families or friends, and these cases can be easily put into a bag or backpack. Specifications: Material: PVC, metal Color: black Size: Big: approx. 13.78 x 11.81 x 1.97 inches Medium: approx. 9.84 x 7.87 x 1.97 inches/ 25 x 20 x 5 cm Small: approx. 7.87 x 4.72 x 1.97 inches/ 20 x 12 x 5 cm Package includes: 3 x Big zippered transparent cases 3 x Medium zippered transparent cases Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.