Elongdi Learning & Building Toy: ASTM certified. Made of safe odorless PP material. No BPA or harmful substances. Thicken material and strengthen magnetism, designed to withstand rough play and durable use | Great Value: Including 100pcs magnetic sticks and 32pcs steel balls with non-magnet. Interesting for kids and adult to play with. Closer the emotional communication between kids and parents in an environment of fun | Best Educational Toy: Includes colorful booklet for your kids to start playing it. Stimulates their spatial thinking and hand-eye coordination. Various outstanding appearances could be built by changing nodes. Help kids to learn color, counting and flat or geometric modeling. Inspire the ability of creativity and imagination of your kids | Potable String Bag: Exquisite string bag is included. Never be messed up after playing. Potable to carry out or play in the cars while road trip. Now just enjoy the memorable moments with your litter ones no matter indoors or outdoors | 100% Quality Warranty: We offer lifetime quality warranty and refund policy to insure no more concerns when you purchase from our ELONGDI store. Customer service will be 7days/24hrs stand by