Bamboo Stylus rubber nibs are produced with high quality materials to ensure the best on screen feeling and experience. However, as with most other things, after excessive or extended use it is possible that the nibs can show signs of wear. Wacom rigorously test all Bamboo Stylus to ensure you get to enjoy them for as long as possible, however depending on your usage level at some point they may need replacing. The rubber nib design eliminates the need for users to apply heavy pressure when using on screen, which assists in extending the nib life. It is advisable to prevent the stylus from being dropped as this can cause premature nib damage.