Valve-action Structure: SHAKE WELL BEFORE EVERY USE; Great control of ink and gas, High-Technology, Archival Quality and Reversible pen cap
Vibrant 48 pcs and 44 colors: Metallic Colors-Gold, Sliver, Copper; Neon Colors-Glowing green, Hot orange, Zesty lemon, Hot pink, Brilliant blue; Basic Colors-White, Black, Blue, Red, Yellow, Green, Pink, Violet, Orange, Brown and more
Ink Certificated: Conforms to ASTM D-4236 certificate, non-toxic, acid free and safe for use by Children. No food contact
Weather Resistant: Water and Scratch resistant, Non-fading in nearly all weather and quick drying
Smooth Writing: Writes on nearly any surface with your imagination and creation, allowing you to easily write on metal, paper, stone, rubber, ceramics, wood, canvas, glass, plastic and more!