GREAT IMPROVEMENT: Larger Capacity, Longer Writing Distance, Easier Marker Shaking, More Comfortable Holding
Valve-action Structure: SHAKE WELL BEFORE EVERY USE, 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 properties: quick-drying and waterproof. Conforms to ASTM D-4236 certificate, non-toxic and acid free. But don't swallow it and No food contact
Smooth Writing: Writes on nearly all smooth surfaces with your imagination and creation, allowing you to easily write on paper, stone, rubber, ceramics, wood, glass, plastic! Not suitable for porous and rough surfaces.