Enhance and beautify any art image. Each pastel colour has a 0.35-mm fine tip, is easy to use, and has a pen style applicator. Water base net 0.5 fluid ounces per colour. It is acid free and non-toxic. Conforms to ASTM D4236. Adult supervision strongly recommended for usage by children. Allow 15 to 30 minutes for the lacquer to dry before applying more on top. Includes 6 pens per pack. Available in pastels colours. Also includes 1 cleaning pin.