Ideal replacement set: The replacement pencil cap perfectly meets the requirements for replacing the easily damaged part of the Crayon and is a good choice for a backup option. It fits the Logitech Crayon Digital Pencil: The same size as the original pencil accessory ensures that your Crayon functions smoothly and perfectly. The same quality as the OEM pencil tip will not scratch your iPad screen. The pencil cap protects the function of the on/off sensor and keeps the end of your pencil safe.