A ballpoint pen is a writing instrument that uses a small rotating ball at its tip to dispense ink onto paper smoothly and precisely. The ball, typically made of steel or brass, sits in a socket and rotates as the pen moves across a surface, picking up ink from a reservoir and delivering it in a controlled manner. Ballpoint pens are popular for their convenience, reliability, and ability to write on various surfaces without smudging. Available in a variety of colors and designs, they are widely used in schools, offices, and everyday writing tasks.
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