Review on Replacement Nibs Tips Standard For Wacom Bamboo Stylus Pen Intuos Cintiq 13HD 22HD Touch 27QHD Touch Pro Paper Ink Sketch Solo Fineline Alpha Folio Slate Inkspace Paper (30 Pack) by Scott Ramu

These pens are terrible. They wear out like crayons and immediately leave marks on the tablet. They are very soft and make your pen bounce across the tablet, it's almost like trying to drag your pen across the carpet. Edit - one of them burst and got stuck in my pen from being in my pocket for 5 minutes. It's cheap junk, just buy it from the official website, which really works.