The 12 bright metallic colors in the Rainbow Sparkle Watercolor Gel Crayon set inspires me to make more art! You can use a paintbrush and water to create a cool water color effect. Or just use them to draw. You'll love how the gel crayons glide over your paper. The crayons are washable and will not dry out. You twist up to use and they work on most paper types. The crayons are water soluble. Great paired with one of the on the go sketch books or to use with our watercolor paper.