For 14-year-old or above Sturdy, not easy to break apart. Building manual included Experience the joy and pride of a true craftsman This product has >910 pieces. Special Interlocking Brick-through System JEKCA is “building blocks for kidults” designed by Hong Kong-based toy-brick-maker. The products provide a fabulous range of 3D animal installation kits for kids and adults. JEKCA is different from the traditional toy bricks you have ever played with. We have a patent locking technology to ensure these brick sculptures can be built sturdily without using any glue. The assembling procedure is straightforward and a detailed step by step manual is included in the package. JEKCA is not only great for kids and adults who love to build their own models, it also works great as a family project! Enjoy the leisure with the family and feel the accomplishment of building these wonderful sculptures together!