1. MaterialMade of strong, environmentally friendly, hard plastic, durable and will not cause any harm. The transparent plastic allows you to see the inside of the box. The outer size of the storage container case: 5.95.94.9in / 151512.5cm, single grid size approx. 2.361.891.57in / 64.84cm. 2. DesignThe three layers can be used separately, this makes it easy to change 1/2/3 tiered forms storage case, and the top cover adapt to any layer. The detachable divider can have more sizes of grids to store more items. The stackable storage boxes can be stacked at will in any order. 3. Each organizer has a lid with a handle for easy portability; opens and closes easily and locks securely, you can use it to organize your gadgets bead jewelry accessories, nail art, tape; or change the size of the grid to organize other small items. 4. Widely ApplicableGreat for storing beads, jewelry, tiny figurines, cross stitch threads, scrapbooking supplies and other art supplies. Also for fishing tackles and hooks as well as small hardware like screws, nuts bolts and other small tools or utensils.