The ink used in gel pens is a specially formulated water-based pigment ink, and its viscosity is precisely controlled within a range that is neither too thin nor too thick. This ink can flow out quickly and evenly when writing, and it is neither too thin to be difficult to control nor too thick to i...

The water-based ink of a Marker Pen is mainly composed of water, pigments or dyes, surfactants, moisturizers, etc. These ingredients make water-based ink soluble in water, environmentally friendly, and easy to clean. Water-based ink usually has a lower viscosity and better fluidity, which allows it ...

The materials used to make Pencil Lead Case are carefully selected to ensure that they have good moisture resistance. Plastic materials are widely used because of their waterproof and corrosion-resistant properties; metal materials such as stainless steel or aluminum alloys, although slightly more e...

The design of this Students Use Mechanical Pencil is indeed optimized for students of a specific age group. The pen holder adopts a rollable printed film design, which is not only beautiful, but also provides a certain degree of elasticity, making the pen holder less likely to be damaged during use....