Valve-action Structure: Great control of ink and gas, High-Technology, Archival Quality, Safe for Use by Children
Multi-Colors: 18 vibrant colors: Black, Brown, White, Red, Orange, Yellow, Green, Pastel Blue, Blue, Violet, Pastel Pink, Pink, Pastel Yellow, Light Green, Metallic Violet, Metallic Blue, Gold, Silver
Ink Certificated: Conforms to ASTM D-4236 certificate, non-toxic and acid free. But don't swallow it.
Quick-drying, erasable with hard scrape and soluble in water; suitable for repeated drawings on the same surface
Smooth Writing: Writes on nearly any surface with your imagination and creation, allowing you to easily write on paper, stone, rubber, ceramics, wood, canvas, glass, plastic and more!