Bend a bar magnet into a "U" shape, and what do you get? A stronger magnet! Why? Because the poles are then side by side. Ceramic magnets are the most lightweight and economical. Magnets feature red poles, marked with North and South. Magnet measures 1.25". For ages 8+.
Key Features :
i : Classic magnets for demonstrating polarity and attraction ii : Useful for demonstrating attraction and polarity iii : High quality components make this item durable iv : Use with iron filings or other magnets