Help draw our planet's future with the long-lasting BIC Ecolutions Permanent Markers. These markers have sleek gray barrels that are not only made from 51% recycled plastic excluding ink cartridge, but the paperboard used in the packaging is made up of 100% recycled content and is also recyclable. It's the perfect permanent marker for creating vivid marks on glass, metal, photos, plastic and much more. Even better? They won't dry out for 2 weeks on classic colours if left uncapped. The colour markers come in bold blue, green, black and red ink. Looking for larger quantities of eco-friendly school supplies? Choose this marker set, which contains 12 markers. Help reduce your environmental impact and get quality permanent markers you can trust with the BIC Ecolutions Permanent Markers. This product conforms to ASTM D-4236 on labeling art supplies.