10PCS Straight Magnetic Rod Stick Model Building Assembly Education Kids Adults Toy

The models shown above are amazing, right? Once you make the magnets get the max. magnetic force, the basic condition, then it is much easier for you to building the models as pictures. Please see Picture A and Picture B. In these two pictures, the triangles are the same. Three angles of the triangle in the Picture A cannot attract steel balls, while two angles of the triangle in the Picture B can attract steel balls. Why? Because in Picture A, the magnetic circuit of the triangle is balanced and reach its max. magnetic force, while the triangle in Picture B is not, which make the steel balls magnetized. Therefore, triangle A is firmer than triangle B. Most of people know the basic rule: the same polarity will repel each other, while those of different polarity will attract each other. If you want to get the max. magnetic force, you have to make sure the magnetic circuit is balanced. Balanced magnetic circuit means each connection has different polarity, also the magnetic models are firmest. Using imbalanced magnetic circuit, you can build more interesting dynamic models. Description: Item: Straight Magnetic Rods Quantity: 10pcs per package Straight Magnetic Stick Length: About 27mm Recommended Age: 8+ Years Old Note: Adults' supervision is needed when young children are playing these rods. Package Included: 10 x Straight Magnetic Rods