The adjustable marker holder for the Silhouette Cameo 4 will only work in the Cameo 4. Use almost any marker in your machine to draw instead of cut your images. Because there is no top to the holder, height is no problem! Simply add your marker to the holder on the left side, use the popsicle stick to adjust your height, adjust the screw, and you are all set to draw. Will hold most markers up to 1/2 inch in diameter or the size of a fine point Sharpie. This is the original, authentic Chomas Creations tool manufactured in the US, made of premium quality lightweight aluminum. It's built to last a lifetime and never need replacing. Lifetime guarantee.