Upgraded Fine Pen Tips: design precision fine control replacement tips ,increase the metal tips length, good for drawing and sketch, high strength cover material,improved the weld procedure to not easy to broke by falling. Wear-Resistance :The copper conductor with the anti-scratch ball,'t scratch your screen protector ,durable and long lasting ,worry free to easy wearing down of the other pencil tips .cost saving. Make for your pencil is a Ballpoint Pen,ink pen it is also a stylus . Precision Control: 1mm diameter ,precision control for the fine , unique finer pen tips with the same high pressure sensitive as the original pencil tips , the tungsten carbide ball antenna design,more to the pen like pencils ,no ,free to write , to draw ,flexible and for writing comfort.perfect fits for the students ,office note-taking,illustrators and especially fits for the artists for digital . Universal Fits: for pencil tips, Compatible with Pro Pencil 1st Gen, Pencil 2nd Generation, Crayon digital , Pro 11 inch 10.5 inch 12.9 inch 9.7 inch,good with Models Pencil Tips. Satisfied : Easy Installation,Few seconds,twists on or twists off, insured Colour: White Material: Plastic Package Contents: 2 x Pencil Tips Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.