Internal P o Case: This p o organiser box includes 10 internal p o keeper, which can accommodate a total of 1000 to 1200 4 inch x 6 inch p os. Prevent P o Aging: Daily lighting and prolonged exposure can accelerate the aging of p os. To avoid this problem, we have specially designed a black p o inner box to block the exposure of external ultraviolet rays, better slowing down the yellowing speed of p os and providing protection for your p os. Waterproof Structure: This p o storage boxes 6x4 is designed with waterproof materials, and its sturdy waterproof structure ensures the durability of the p o storage box. Its materials also that your p os are not affected by moisture, dust, or any other potential damage. A Great Helper for Organizing P os: Whether you have many small accessories or a large file, this p o storage boxes can provide you with convenience. You no longer need to worry about insufficient space or chaotic places affecting your living. With this p o storage boxes, life has become clean and simple ever since. Multi Functional: This p o storage boxes can not only be used to store p os, but also be used for storing seeds, crafts, jewelry, office supplies, or other small items. The inner p o box can also be taken out at any time, and after taking it out, you can use the large p o storage boxes as a home toolbox. Colour:P o Color Material:Plastic Package Contents: 1x P o Storage Boxes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.