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 water color 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. Size: 5 x 0.50 x 0.50