Reliable Masking Solution for Art & Office This set provides two masking fluid pens with complementary tip sizes: 3mm tip for efficient coverage of large areas 0.7mm tip for detailed corrections and fine artwork Key Features: Blue quick-drying fluid clearly marks protected zones Non-residue removal maintains surface integrity Universal application from watercolor paper to documents Erasers included for safe, damage-free cleanup Practical Usage Guide: Apply fluid to surfaces needing protection Allow complete drying before painting or marking Rub off gently with included eraser after work Versatile Applications: Reserve highlights in watercolor paintings Mark temporary corrections on documents Create custom stencils for mixed media Protect signatures on important paperwork Suitable for artists, students, and office professionals seeking precise, temporary surface protection.