1. Suitable size: Our box set contains 1 outer box and 20 inner boxes. The dimensions of the outer box are 19 x 7.5 x 4 cm (L x W x H) and the dimensions of the inner box are 3.5 x 3.5 x 1.8 cm (L x W x H). 2. Suitable for a variety of items: Our sorting boxes for small items can meet the organization and storage requirements of various items, whether you are storing small accessories, earrings, rings, necklaces, threads, beads, diamonds, crystals, rhinestones, electronic components, or nail art supplies, screws, nuts, etc. This box is ideal for your organization and storage needs. 3. Easy to find: Our organizer box is made of transparent PP plastic, which not only makes storage more convenient but also allows you to clearly see the items stored inside. This transparent design significantly increases the speed of finding what you need. 4. Safety material: The small parts box is made of PP plastic with a strong outer shell that is not easily damaged, ensuring your items are well protected during storage. You can use markers or label paper to mark items on the plastic boxes for faster identification and management of different types of items.