Acrylic markers that use environmentally friendly and pollution-free oily ink have significant advantages in writing fluency and quick-drying properties. The environmentally friendly and pollution-free oily ink uses a special formula to ensure its smoothness and stability. This ink flows out of the ...

As a learning tool, one of the core functions of a highlighter is to help students quickly and accurately mark key information during reading, learning or reviewing. Therefore, the quick-drying property of the ink has become a key factor that cannot be ignored in the design process. Quick-drying ink...

The size design of the student mechanical pencil has been carefully considered in terms of portability and grip comfort to meet the needs of students' daily use.The length of 135mm is designed to be just right, neither too long to take up unnecessary space in a school bag or pocket, nor too short to...

The color durability of a highlighter and its non-fading characteristics mainly depend on the quality of the highlighter, the ink formula and the conditions of use. The following is a specific description of the color durability and non-fading properties of a highlighter:Ink formula and quality: The...