Product name: Pottery drawing pencil Combustion temperature: 1100 degrees -1300 degrees Single size: 17.3cm/ 6.81in Box size: 19*6.5*3cm/7.48*2.56*1.18 inches Color: 10 colors/set Features: Easy to use, rich color, no lead/cadmium, environmental health, easy to express hand-painted style. Application: Underglaze ceramic coating Rich color: colorful 10 colors, clear texture overlapping natural, rich color coverage strong. Round pen: good workmanship, comfortable grip, strong applicability. Environmental protection and health: healthy product selection, lead-free cadmium, non-corrosive, low odor. Note: 1. The pencil core is underglaze color fine, the hardness is lower than that of ordinary pencils. Be careful when sharpening the pencil. The pencil sharpener can easily damage the refill. It is recommended to sharpen the pencil by hand to maintain the thickness of the lead. 2. The depth of the color lead is adjusted by the weight of the pen, which should not be repeatedly superimposed in the same place, and should not be daubed with hands, and the color will be erased to affect the quality of the picture. 3. Paint the light color first, then paint the dark color, the effect is clear and not easy to dirty. 4. The colored pencil tip can be moderately dipped in water according to the painting needs.