Aquatone Woodless Watercolor Sticks can be used to create a wide range of exciting effects from bold vibrant images to soft, subtle impressions. They are extremely versatile, suitable for use three ways: dry pencil onto paper (wet or dry), wet pencil onto paper (wet or dry) or dry pencil washed with a wet brush. Combining the control of a pencil with the natural beauty of traditional watercolors, the smooth color retains its full intensity whether applied wet or dry. Aquatone Woodless Watercolor Sticks are the same pure soluble color as the Watercolor Pencils without the wood case, ideal for creating large swathes of color. The protective paper wrapper on the Aquatone sticks can be removed to apply the broadest strokes. Aquatone is a large round pencil shape, with a color coordinated paper wrapper. Aquatone sticks are pre-sharpened for immediate use and convenience. Aquatone Woodless Watercolor Sticks are considered non-toxic.