Can I file or cut the Press-ons if they don’t fit or are too long? Cutting is not recommended, but gentle filing is fine. Related articles Can I apply nail polish or gel polish on Press-On Nails? My Press-ons come off quickly, how can I prevent this? Can using Press-ons damage my natural nails? How do I remove Press-ons applied with Glue Pads? From what age can you use Press-ons?