Upgraded Fine Point Pen Tips: design precision fine line control replacement tips ,increase the metal tips length, good for tilt 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 reliable anti-scratch ball,don't scratch your screen protector , and long lasting ,worry free to easy wearing down of the other large pencil tips .cost saving. Make for your pencil is a Ballpoint Pen,ink pen but it is also a stylus pens . Precision Control: 1mm diameter ,precision control for the fine detail, finer pen tips with the same high pressure sensitive as the original pencil tips , the tungsten carbide ball antenna design,more close to the pen like pencils ,no lag,free to write ,tilt to draw ,flexible and accurate for writing comfort.perfect fits for the students ,office note-taking,illustrators and especially fits for the artists creation designer for digital drawings. Universal Fits: Reliable for pencil tips, Compatible with Pro Pencil 1st Gen, Pencil 2nd Generation, Crayon digital pens, Pro 11 inch 10.5 inch 12.9 inch 9.7 inch,good companion with Models Pencil Tips. Satisfied : Easy Installation,Few seconds,twists on or twists off,Quality insured Colour: White Material: Plastic Package Contents: 40 x Pencil Tips Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.