Yes Pens

Unlike a regular pen, retractable pens have a movable core that houses its ink and nib. This core is an ink cartridge attached to a spring mechanism. The spring-loaded cartridge extends or retracts at the push of a button located at the top of the pen. When repeatedly pushed, retractable pens make clicking sounds that many find satisfying.

The Makeup of a Click Pen
The various parts responsible for the extensible mechanism of a retractable or click pen include a thruster or the button at the top of the pen, two cams, a spring, a guide pin and the outer frame of the pen. The guide pin directs the linear movement of the ink cartridge and ensures that it only moves up and down. The spring coils around the cartridge and provides the tension that pulls up or pushes down the cartridge and nib. The cams stabilize the entire system by keeping the ink cartridge fully extended or fully retracted.

By pushing the button at the top of the retractable pen to extend its nib, the cams switch into one of two positions and depress the spring. When the spring contracts, it pushes forward the ink cartridge and, by extension, the nib out of the other end of the pen. Pushing the top of the click pen again retracts the nib by releasing the tension in the spring and switching the cams around.

The Benefits of a Retractable Nib
Many pens come with a cap to cover the nib when not in use, this helps to minimize dust build-up which can cause it to become scratchy when writing on paper. Such caps can be screw-on or snap-on covers made of plastic or metal. A retractable pen is an excellent alternative to a capped pen. The retractable tip saves the nib from dirt and damage when withdrawn into the shell.

Sometimes, ink continues to flow from the exposed nib of a non-retractable pen even when not in use. Having a retractable tip prevents such ink bleeds. Also, because the pen tip is stored inside the body of the pen when not in use, air flow is limited which reduces the chances of the nib drying out and reducing ink flow.

Choosing Between Retractable Pens
The first step in picking the right click pen is to decide on the style you want. While most have ballpoint design, they are also available in rollerball and fountain styles. Next, choose between disposable and refillable options. Disposable clickers are usually more affordable and have plastic builds while refillable models have metal parts and attractive designs.

The other factors to consider include pen size, color, tip size and heft. Pen size is an important consideration, especially when looking for a small pen for a kid or a spare to stow in a breast pocket. Heft describes the weight of a pen as well as its balance and feel in the hand. Tip size determines the width of lines drawn by a pen. Choose a thin nib or small point to get fine lines.

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