[Replacement Technique] These for pen tips are designed for the second generation/first generation of pencils and crayons, with more precise control, and are very suitable for professional long-term drawing and writing groups. The materials are high in strength and are not easily damaged. "" The circular nib design of these three alloy nibs 't scratch your screen protector when using an for pen, and it's , so you don't have to worry about changing the nib frequently due to wear, which really saves you money. "Precise Control" The pen tip has the same pressure perception as the original accessory pen tip, making it easier to see the position of the drawing, improving accuracy, and making for Pen writing as free as a real pencil. [Easy to install] Reliable for pen tip, compatible with second generation for pencils, first generation for pencils, and crayons. A few seconds of twisting. Suitable for students, more suitable for professionals such as writers and designers. Color: white+transparent material: plastic Package Contents: 3 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. "" The circular nib design of these three alloy nibs 't scratch your screen protector when using an for pen, and it's , so you don't have to worry about changing the nib frequently due to wear, which really saves you money. [Easy to install] Reliable for pen tip, compatible with second generation for pencils, first generation for pencils, and crayons. A few seconds of twisting. Suitable for students, more suitable for professionals such as writers and designers. [Replacement Technique] These for pen tips are designed for the second generation/first generation of pencils and crayons, with more precise control, and are very suitable for professional long-term drawing and writing groups. The materials are high in strength and are not easily damaged. "Precise Control" The pen tip has the same pressure perception as the original accessory pen tip, making it easier to see the position of the drawing, improving accuracy, and making for Pen writing as free as a real pencil.