Don't just cover change the color with 4 Take note dual-ended color changing pens Each pen is equipped at one end with a felt tip marker and the other with a clear color changing chisel tip Precise details are easy with felt tip pens And if you want to change the color just flip to the other tip and apply the clear ink and watch the magic happen! Color-changing inks wash easily from skin & Clothing They are the perfect fun and functional note taking supplies for the classroom office and more Ideal for teens and adults