The Wacom Ballpoint Pen for Bamboo Folio and Bamboo Slate comes with 1.0 mm tip using a black oil ink cartridge. The oil ink and the medium diameter allows for quick and loose sketching with longer lasting ink.<br>When used with these smartpads, each stroke is accurately captured digitally in a lossless format. It also leverages the benefits from our latest pen technology using 4x pressure levels.<br>Wacom Ballpoint Pen comes with 3 replacement refills. This pen is a replacement pen for Bamboo Folio and Bamboo Slate.