These are recyclable pens in different colors. These pens have thinner and smaller sizes than the normal. They can have ink refilled which would not waste the pen barrel. It is handy and easy to refill ink. Even if they were disposed, they can discompose and would cause less pollution.

• Ink refill: blue or black
• Material: paper barrel and corn starch parts
• Biodegradable materials: disposable and recyclable