🚒【35-in-1 CONSTRUCTION BUILDING TOY】The stem robot construction set features 836 PCS(35 models) which can be assembled into big flexible robot or 2 trucks or 32 small car models! It can build 8 different vehicles while each has 4 forms that enable children to learn about different types of vehicles and tools. We included an easy to follow, step-by-step instructional guide showing how to build these models. 🎓【LEARNING TOYS FOR KIDS】Our educational building kits grow with your child and designed for your child. Unleash the creativity & imagination of your children by introducing them to the world of STEM. Enhance your kid’s hand-eye coordination, spatial thinking ability, critical thinking, problem-solving skills, and cultivate their concentration. Integrates incomprehensible technical & engineering knowledge and concepts into interesting games during the building time. 🌼【SAFETY MATERIAL】Our building kits are made of environmentally friendly and safe materials non-toxic materials to and free from odors. Ensure the safety of your kids while having long-lasting durability for playing and building. we make every effort to bring out wonderful blocks with a smooth surface and bright colors that do not fade. 🌟【WORKS WITH ALL MAJOR BRANDS】This robot building toys are designed according to the standard of building blocks, which are compatible with other existing name brand building bricks. build your own amazing robots and cars more with this classic collection of major brand bricks, allowing for great flexibility in design and creativity, creates more game scenes. 🎁【THE BEST GIFT FOR KIDS】Educational building blocks educational toys set designed to enhance your children's science, technology, engineering, and math skills. Challenge children to build their own robot, truck, and anything they can imagine, thereby enhancing their imagination and creativity and enhance brain development. Best gift for ages 6 -12 boys & girls. Each small model in the manual can only transform into 2 forms. If you need to transform to another model, please contact us.