72 Colors Alcohol Double Head Art Marker Pen Industrial Design Drawing Tool Set Features: 1. Imported double-headed head meets different needs of special materials, wear-resistant, and lint-free. 2. The width of the round head is 1mm, generally used for detailed description. 3. The width of the oblique head is 6mm, generally used for large-area touches. 4. The wide side of the marker can draw fine lines, strong lines and thick lines 5. The painting color is smooth, the saturation is high, the color stacking effect is outstanding, and it is not easy to smudge when it meets water.   Specification: Condition: Housing Material: Plastic Pen Length: Approx. 152mm / 6in Pen Head: Double head: round head 1mm and oblique head 6mm Optional Style: 36 Colors, 48 Color, 60 Colors, 72 Colors   Package List: 1 Set of Art Marker Pen(36 Colors, 48 Color, 60 Colors, 72 Colors)   Note: 1. Color difference in individual colors due to display problems 2. Place the marker in a cool place, and make sure that each marker is covered and not exposed to the sun. The shelf life of each pen is 1-2 years. 3. Marker pens may be loose during transportation. Please ask the customer to close the first time after receiving the goods, because the ink has alcohol and is volatile.