The magnetic construction toy set helps children learn while they play. -Exercise children"s ability to recognize colors. -Toys that can train children"s brain or adult decompressors. -Keep children away from electronic products and protect their eyes. -Help relieve anxiety and boredom, improve patience and intelligence. -Stimulate creativity and help children develop a sense of proportion. -Create thousands of shapes and models through children"s creativity and design. -Create simple and fun ways to learn the basic concepts of geometry, physics and architecture. -Improve children"s spatial imagination, logical reasoning ability and manipulative ability. -It can improve the coordination of human eyes and improve the ability to solve problems of shapes SPECIFICATION: packing: tin box Ball Color: Silver/Color Ball diameter: 8mm Rod length: 23mm Number of balls: 54 Number of rods: 72 Package includes: 126 magnetic toys Note: the ball is not magnetic, only the pillar attracts and/or repels (the polarity of the magnet causes one part of the magnet to attract and the other part to repel another magnet). SPECIFICATION: Number of balls: 216 Ball diameter: 5mm Color: rainbow (6 color mix) EL SET INCLUDES: 216 magnetic balls Metal box for balls Electromagnetic rod specifications: -Material: PP and electromagnet; -Color: random color; -Size: 2.3 inches; -Weight: 5g Magnetic beads + magnetic rod specifications: -Material: Stainless Steel; -Diameter of magnetic beads: 8 mm; -Magnetic rod diameter: 4mm, magnetic rod height: 24mm; Consideration: Children under the age of 14 must play with an adult Choking Hazard: This product contains small magnets. Swallowed magnets can stick to the entire intestine and cause serious infections and death. If the magnet is ingested or inhaled, seek immediate medical attention. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!