Retractable ball point pen is made using corn starch-based Bio-Plastic which leaves no chemical residue in commercial composting facilities. 68% biobased, biodegradable barrel reduces the use of petroleum as well as producing less waste than traditional pens. Latex-free rubber grip provides added writing comfort. Certified by the Biodegradable Products Institute. Meets ASTM D6400-99 Standards. Accent color identifies color of ink. Pen is refillable.