How does the choice of plastic material affect the weight and grip comfort of Office Use Roll Ball Pen?

Plastic materials have a much lower density than metal materials, which significantly reduces the overall weight of Office Use Roll Ball Pen. Taking a 142mm pen as an example, the weight of a plastic pen is usually controlled between 8-15 grams, while a metal pen may exceed 25 grams. This lightweight design greatly relieves the hand pressure during long-term writing, and is especially suitable for office scenes that require frequent recording of meeting content or annotation of documents. The lightweight pen body is also easy to carry, and it will not cause additional burden whether it is clipped in a notebook or put in a pocket, thereby improving the convenience of daily use.
Plastic materials can enhance friction through frosting, texture carving or soft rubber wrapping, effectively avoiding the problem of sliding caused by hand sweat when writing. For example, the frosted ABS plastic pen body has a delicate and non-slip surface, while the soft rubber wrapped pen body can further fit the contour of the finger and provide a stable grip experience. In contrast, the untreated smooth plastic surface may cause unstable grip due to hand sweat or oil stains, affecting the smoothness of writing.
Some plastic materials have a certain degree of flexibility and can deform slightly to fit the curve of the fingers and disperse the pressure of the hand. This feature makes the pen less likely to feel stiff when held for a long time, especially suitable for users who need to write continuously. In addition, hard plastics (such as PC) can be ergonomically designed through injection molding, such as wavy or triangular grooves, to further improve the fit and comfort of the grip and reduce hand fatigue.
While ensuring lightness and comfort, plastic materials also have a high cost-effectiveness. Engineering plastics have both strength and impact resistance, are not easily damaged by daily falls or collisions, and have low maintenance costs. In addition, plastic materials can easily achieve colorful, transparent or matte effects through injection molding, meeting the personalized needs of office scenes without significantly increasing manufacturing costs.