STEM Building Toys For Kids Ages 8-12 - Our construction building toy is designed for 8+ years old kids, includes 256 parts, such as nuts, bolts, screwdrivers, and wrenches, made of durable metal. After the build is completed, The swing arm can swing freely, and the bulldozer can slide for a long distance with a little push. This stem building toy incorporates boring engineering knowledge and concepts into funny building games, aiming to improve children's STEM skills. Easy To Follow Instructions - We have prepared clear instructions for children, each step is illustrated, step-by-step instructions that are easy to understand. This teaches them to follow instructions and ensures they won’t become overwhelmed or frustrated while they build. Wrenches and screwdrivers are also prepared for children to assemble parts easily. Hands-On Stem Learning Toys - Children need to build this model bulldozer through careful thinking and patience. During about 4 hours of the building process, the child's hands-on ability can be maximized. Children always have infinite creativity! We believe that STEM science education can greatly promote creative learning and brain development. Metal Made & Engineering & Bigger Size - Our excavator building toy is made of metal and the model bulldozer is sturdy once built without worrying about loosening. With a size is 6” H× 6.7” L×4.3W, it is a beautiful display worth showing off, and it will definitely become an indispensable construction model bulldozer in the engineering series or build series. Safety & Suitable For Kids - Our bulldozer stem building projects set choose stronger, high-quality materials, fine and gentle surface treatment, 100% friendly and no hurt kids, to ensure the safety of your kids, and at the same time have a long-lasting play and construction durability. A great toy for 8 9 10 11 12 13 14 15 16 year old boys and girls. As a stem science education project, give your teenager or student a big surprise. › See more product details