STEM Master 176 Piece STEM Learning Educational Construction Building Toy Gift Set for Boys and Girls Ages 3 4 5 6 7 8 9 10 Year Old Kids - Engineering Science Blocks Kit - Top Best Creative Birthday Features: FUN, PRODUCTIVE PLAY - At STEM Master, we believe in empowering children to boost creative learning and brain development. Our unique engineering set helps kids develop mental muscles through interactive play! Supports logical thinking, cognitive system development and reasoning. Perfect for preschool, kindergarten classrooms, and up.PROMOTES STEM LEARNING - This teacher-recommended, innovative play set provides your kids with a solid foundation for in-demand skills! From science and physics to math and geometry, our educational toys encourage kids to build their critical thinking and problem solving abilities as well as their teamwork and social skills.INCLUDES BUILDER'S GUIDE - A full-color builder's guide with 42 ideas for beginner, intermediate and advanced builders ensures creativity, success and incredible geometrical configurations! Your purchase will also include our handy storage container, keeping your home clean and organized.NON-TOXIC, CHILD-SAFE CONSTRUCTION - We care about safety as much as you do! Independently tested in a CPSC (U.S. Consumer Product Safety Commission) approved lab, our toys and storage containers are lead, BPA and phthalate-free. For a quick, hassle-free clean up, simply rinse the toys under warm water. Product Details: Handling We will ship all orders within 3 business day of payment. Delivery We Ship International via eCRATER GLOBAL SHIPPING PROGRAMME. Return Policy All items qualify for returns within 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged. Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction.