Stylus Pens by OASO. Details:Free your finger and use OASO stylus for all touch screens. OASO Disc Stylus Pen Compatible for all touch screens, as pen for all version of apple iPad/iPhone/iPod /iWatch, Samsung Galaxy Tab S7/A7, ChormeBook, Microsoft Surface, Fire HD 8 tablet, Fire HD 8 Kids Edition, Android Phone & Tablet, MatrixPad, Dragon Touch Notepad, Touch Screen Cell Phone etc How to change the disc tip -When you want to change the disc, you can find the 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. IMPORTANT INSTRUCTIONS: !! No not remove or cut the disc tip. The disc tip is the mian part of this stylus. Please keep it in good condition and clear. !! When you drawing on screen, please do not rest your palm or hand on screen. This would impact the stylus touch with...