1、Compatibility: These original replacement pen nibs are compatible with PN7320a PN5122W PN9315A PN7522A touch pens, ensuring an optimal fit and performance. 2、High Sensitivity: The touch pen nib features a highly sensitive tip, providing you with a precise writing or drawing experience. With its exceptional responsiveness and sensitivity, it allows you to write without any limitations. 3、Scratch Resistant Experience: The fine rubber nib is clean and smooth, leaving no scratches. This significantly reduces the amount of friction on your screen, preserving its pristine condition. 4、Enhanced Accuracy: The use of a laptop touch nib enhances accuracy when writing or drawing on your device. Its smooth using improves your overall laptop experience, whether for work or creativity. 5、Easy Installation: Installing the pen nib is easy and requires no tools. It can be easily replaced or removed by hand, offering convenience for regular maintenance or replacement.