2 in 1 Precision Series: New upgraded fine point disc stylus pen gives you two options to use. Transparent disc allows you to see the exact pointing position on the screen, provide greater flexibility and accuracy in drawing or writing. Conductive fiber tips are very soft and smooth to use, good for navigation or scrolling web pages, effectively protecting your screen from fingerprints or smudges Comprehensive Usage Magnetic Disc Capacitive Stylus Pens apply for playing games,staying,drawing,writing,signing,taking notes and illustrations. The disc stylus tip is clear and thin which allows you to see through and give you the accurate point when you drawing for artist. How to Change the Disc Tip New disc is on the other side that covered by the sliver cap, please screw off the cap and you will see the disc tip. To replace the disc tip, please pull it out by holding the middle part of the small metal bar, then push a new disc tip into the stylus. Cautions: 1. This Stylus doesn’t support palm rejection, please make sure your hands don’t lay on the screen. 2. Don't remove the plastic disc at the end of the tip, if you moved the Disc, the fine tip won't work. 3. If the stylus lag and can’t write smoothly on the device, the reason would maybe the device doesn’t run properly, please restart the device or turn off other apps. 4. You can slide the screen, but can’t write in a specific app, please check the App settings or confirm whether the App supports handwriting functions. 5. Normally it won't cause scratches on a touch screen, but we still suggest you use a screen protector on your device to protect the screen from any possible damage/scratches which may be caused by dirt on disc/screen, damaged tips or defective product of low probability. 6. If you suspect that your disc has been damaged in any way, discontinue use. A damage disc may scratch the screen. Please replace it with a new disc.