The back of the pen has a plastic oval back shell for pressing the refill. After opening it clockwise, you can put the new refill into the pen, then cover the back cover again and use it normally.

Fluorescent pen has fluorescent agent, which will produce fluorescent effect when it meets ultraviolet rays (such as sunlight, fluorescent lamp and mercury lamp), and emit white light, thus making the color look dazzling fluorescent.

The fluorescent principle of highlighter is different from that of our watches and glow sticks. The inside of the glow stick is radioactive, and the generated rays excite the surrounding fluorescent powder to emit light, so it can also emit light at night without any ultraviolet rays.

Magical use of highlighter:

Selection of highlighter: In the process of playing the presentation document, click the right mouse button anywhere in the presentation document to pop up the drop-down menu, select the pointer type menu, then select highlighter in the pointer type drop-down menu, select line type in the drawing shape menu, and select the required color in the ink color menu.

Highlighter marking and marking: according to your own needs, use highlighter to mark and mark any position in the presentation.

Ink Retention: If the document is circled and annotated during playback, WPS demo will prompt whether to save the ink annotation when exiting playback mode. Click the "Save" button, and the WPS presentation will save the ink to the slide page of the WPS presentation file. Click the "Give Up" button, and the ink will not be saved in the presentation document.