The Mont Marte Flexi Tip Acrylic Paint Pens Premium 12pc set features an ultra-flexible brush tip that allows you to easily transition from fine details to sweeping 10mm strokes. Each pen is packed with free-flowing, highly opaque water-based ink that dries to a permanent, professional matte finish on multiple surfaces. This versatile 12-piece color palette provides mess-free control on canvas, paper, rocks, and clay, making it an absolute studio favorite for custom illustrations and lettering.