The world under the ocean is much more vivid than we can image. There are still millions more species to be discovered in the ocean. JEKCA introduces new designs of marine animals including dolphin, penguin, as well as 13 designs of tropical fish for all of you. Let's explore the vast ocean with JEKCA! Number of Bricks 450 JEKCA has patented inter-locking brickthrough System, which turns stacked building blocks into very sturdy structure without using glue. This process is completely reversible and so you are allowed to “make mistakes” during the process, or recreate it into another item you want. Small Object Risk: Please be aware that the packaging of this product contains small objects. To prevent choking or other accidents, please keep these small objects away from young children and pets.