Create bold strokes of color and watch them magically change when you add water. Sparkle Gel Crayons are made with a solidified gel that makes bolder and smoother strokes than normal crayons. Add a wet paint brush for watercolor effects for truly unique works of art. Comes with 12 colored gel crayons with a thick contoured grip for comfort. Also writes on black paper. 12 Gel Crayons Changes Color When You Add Water Comfort Grip