The Pencil comes with a spare tip. Instructions state: Keep the tip of the Apple Pencil clean, as dirt and other small particles may cause excessive wear to the tip or damage the screen of the iPad Pro. With use, the tip of Apple Pencil will wear down, and you'll need to replace it to avoid damaging the iPad Pro screen. I called Apple to ask how the wear is determined. He said just eyeball it and look for a sharp tip or any rough spot. Makes me want to consider a screen protector but it's not clear how that would impact all the research Apple did to ensure the Pencil and iPad Pro work together. Hopefully in coming weeks there will be feedback on that. He also said Apple will start selling replacement tips for the Pencil, probably within the next couple of months. Also interesting that there is no cap to protect the tip when not using the Pencil. I ordered a couple of cases from Amazon: Case Star Black Color Hard Shell Protective EVA Carrying Case and LIHIT Lab Pen Case.