UP370800, Wacom Ballpoint Pen for Bamboo Folio and Bamboo Slate | EET
Amazon.com: 5 Pack Replacement Pen Nibs In Black For Wacom Bamboo Intuos : Electronics
Bamboo Slate and alternative ink refills : r/wacom
Wacom Bamboo Slate CDS610S Smartpad A5 (Half Letter Size) / Small Notepad with Digitization Technology incl. Stylus with Ballpoint Pen / Compatible with Android and Apple - Newegg.com
Amazon.com: Wacom CDS610S Bamboo Folio Smartpad Digital Notebook Gray, Small : Electronics