Green-Pen® is made from Mater-bi. It is a corn starch–based material, fully biodegradable, and can successfully replace standard plastic materials. After composting it is transformed into a fertilizer to generate new agricultural products. Mater-bi does not release any metal or toxic residues, it comes from the earth and it returns to the earth without altering the eco-system.

Furthermore, it has been certified by BPI (Biodegradable Products Institute), approved by the CPIA (Canadian Plastic Industry Association), and has obtained the CEE safety mark for children.

Once the ink completed, simply remove the tungsten cartridge from the barrel. Plant the pen in soil and after approximately 8 months, the pen will have decomposed and will serve as a fertilizer for your plant! Also available is a little bottom cap with flower seeds. Simply plant in soil and watch the seeds sprout and bloom while the pen decomposes into the soil.