Sharpie 1878458 Neon Fine Point Permanent Marker, Neon Green, 12-Pack The standard in permanent markers offers a bold, smooth, high-quality writing experience. Ink dries quickly, is waterproof, smear-proof and fade-resistant. The AP certified ink is non-toxic and long lasting. Delivers ultra-bright, colorful marking on light surfaces in daylight, and marks that turn fluorescent in black light environments. Durable fine-point tip produces thinner detailed lines on even hard-to-mark surfaces. Ideal for birthday cards, note taking, and thank-you notes.