This transparent storage containers are made of a hard PP plastic, which is not only environmentally friendly but also sturdy, practical and broken-resistant. Each large box size is approx: 21x 17.4 x 2.6 cm/ 8.26 x 6.85 x 1.02 inch, with 56 grids small lids inside, each small grid size is approx: 2.2x 2.15 x 2.3 cm/ 0.86 x 0.84 x 0.9 inch. 4 mini boxes connected together as a row, it can be taken out and carried easily; Transparent case convenient for you can see everything inside, and easily find the exact items. Small slots are packed in big box, it can provide your stuffs with double seal and protect them from dust or rust, the snap buckle makes the box tighter and stronger, so the stuffs don't come loose and mix around. The transparent box design helps you see the contents clearly at a glance. It will be a omnipotent box to store diamonds, jewelry beads, seeds, earrings, rings, crafting supplies, nail tools, pills or any other tiny items that can be put in.