Do you think Original cricut pens is a little expensive If so you need this pen adapter set. With this pen adapter set you can use the most popular pens/markers you already have for your explore air air 2 and maker machine enjoy all of the color options offered The 20 Packs adapter color is below: [BLUE]:Compatible with Sharpie Art Pen [YELLOW]:Compatible with Sharpie Fine Point [RED]:Compatible with Sharpie Ultra Fine Point [GREEN]:Compatible with BIC Permanent Fine Point Marker [PINK]:Compatiblewith BIC Permanent Ultra Fine Point Marker [ORANGE]: Compatible with BIC Fineliner Marker (including:Fine and Medium Piont) [SKY BLUE]: Compatible with Crayola Fine Line [PURPLE]: Compatible with Crayola Detailing Gel Pen [OLIVE GREEN]: Compatible with Crayola SuperTips [PINE BLUE]: Compatible with Crayola Take Note Washable Gel Pen [GRAY]: Compatible with Pilot Precise V5&V7 [GOLD]: Compatible with Pilot G-2 [MARRON]: Compatible with Paper Mate Flair Felt Pen [PEACOCK GREEN]: Compatible with Paper Mate Inkjoy Gel Pen [WHITE]: Compatible with Sakura Gelly Roll [BROWN]: Compatible withr Pentel RSVP Ballpoint Pen [BLACK]: Compatible with Amaza Gel Pens [PEONY RED]:Compatible with Sakura Pigma Micron Pen [LIGHT RED]:Compatible with MITSUBISHI Uni-ball signo um-153 [PRIMROSE COLOUR]: Compatible with Cricut Explore air/maker Ultimate Fine Point Pen Note:Pens and markers not include. This adapter not Compatible with the cricut explore one and joy.