Smart Color Art Dual Tip Brush Pens with Fineliner Tip 0.4 Art Markers (48 Unique Colors) Double tip Pens Set for Adult Coloring Books, Bullet Journal, Calligraphy, Drawing DUAL TIP: Brush and fineliner tips(0.4mm) allow you to draw with both fine and broad lines and even try shading. COLORS AND FUNCTION: We have 48 UNIQUE COLORS which are perfect for coloring, art, illustrations, doodling, journaling, hand lettering and more. HIGH QUALITY AND SAFE: Our water based ink is quick-drying, odorless, and smooth for writing and coloring. The ink is Acid-Free & Non-Toxic and Conforms to ASTM D-4236. CONVIENT CASE: Good packaging for storing and taking out. Displaying each pen in the exclusive place, good for showing and easy for picking. 100% SATISFACTION GUARANTEE: If you are not satisfied with our product, You will get a satisfied solution or a Full Refund.