The Silhouette Pen Holder for Cameo 4 is available exclusively for the Silhouette Cameo® 4. 

Convert your Cameo 4 into a sketching and drawing machine by using the Pen Holder tool. The Pen Holder allows you to use a range of pens, from a thinner standard ball-point pen to a thicker felt-tip marker.

Product Details:

Pen Diameter Range: 0.25 inch  0.4 inch