BRUSH & FINELINER, DOUBLE-TIP, DOUBLE THE FUN: Master every bit of your creative stroke! The Ohuhu art markers for adults feature durable dual tips with smooth ink flow that effortlessly fit any writing surface. The 0.4mm fineliner tip can glide through the details for intricate coloring, writing, and doodling with fluid precision while the 1-5mm soft brush tip flows through the large area art projects for shading, coloring, blending and more.