Wheels are essential components in various machines and vehicles. They come in different sizes, from small ones on toys to large ones on trucks. Their circular shape allows for smooth rolling, enabling efficient movement. Wheels are made of diverse materials such as rubber, metal, and plastic. The rubber ones provide better traction, while metal wheels strength and durability. They play a crucial role in transportation, whether it's cars moving on roads or airplanes taxiing on runways. Without wheels, the mobility of many things we rely on would be severely restricted.
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