Different sizes, suitable for different jewelries, better storage. Large size for storing bracelet, big earrings, medium size for storing earrings or necklace, small size for storing rings. Size: there are 3 sizes, 10pcs per size. Large size is about 5.09 x 5.09 inch, medium size is about 4.68 x 4.68 inch; small size is about 4.3 x 4.3 inch. Clear design makes it easy can clearly see what's inside and find them quickly. Material: made of high quality plastic, sturdy and strong. But it has a slight smell of PVC material, please consider before order if you mind. Self Seal Closure makes it convenient to open and close, and remain well sealed. Protect your jewelries from oxidation, tarnish, and scratch.