Features: Each layer of the puzzle storage box is equipped with fasteners on both side, which better secure each layer of the sorting box for building blocks. Allowing multiple box to be neatly stackable together to save spaces. With powerful storage functions, makes it a great organizers box for homes, schools, gyms, workplaces, travel, camping and so on. The organiser Box can organise various small items such as beads, jewellery, and so on. Our storage organizers is easy to keep your supplies in order and transport them wherever creativity calls. Specifications: Component: Plastic Size: As the Picture Show Color: 5 Kind Optional Package Includes: 1 Pc Building Blocks Storage Box note: Please allow 1-3cm errors due to manual measurement. Due to difference betweeen different monitors,the picture may not reflect the actual color the item.