This is the SILH-BLADE-3J cutter set for the Graphtec Silhouette Cameo. It uses a dial-type cutter blade for easy adjustment of the blade extension. It can cut materials from thin paper to a maximum thickness of 0.5mm (※when using double cut mode). One of the most troublesome aspects of using a cutting plotter is adjusting the blade tip. With the Silhouette Cameo, you can easily and precisely adjust the blade tip with a dial. There are 10 levels of blade tip adjustment, ranging from 0.1mm to 0.5mm. Although it is new and unopened, there are sticker marks on the case.