Retractable pen mechanism

The clicking mechanism in retractable pens relies on tiny amounts of silicone grease to function smoothly over thousands of clicks. Without proper lubrication, the spring and cam mechanism would wear out quickly, making the pen jam or fail to retract. Manufacturers apply microscopic quantities during assembly, ensuring each pen can typically handle 30,000 to 50,000 click cycles. This is why quality pens maintain their satisfying click sound for years while cheaper ones become sticky or unreliable.
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