Features:
These pen adpateres can replace original stock pen holder to allow use of other most popular markers and pens (Sharpie/Bic/Crayola/Sakura/Pilot/Pentel/Paper Mate/Mitsubishi uni-Ball) in your machine.
Compatible with machine such as Cricut(Explore Air, Air 2, Air 3, Maker and Maker 3.
Each color represents a different fit model, which you can easily identify by the number on cover.
Depth calibration is not required as the adapter perfectly aligns each pen/mark for precise height and point center.
Made of premium ABS plastic material, durable and easy to install and use.