Eco-friendly ballpoint pen, made from rPET (recycled PET plastic water bottles). Comes standard with blue ink and plastic cartridge. Cheap ballpoint pen in different colors, comes w/wo print. rPET (recycled polyethylene) is a food-grade recyclable plastic that is typically made from recycled water bottles. rPET is – despite its fossil origin – a sustainable material. rPET has an extremely high carbon content, and therefore functions as an effective carbon depot throughout the lifespan of the product and recycled products. If plastic is not recycled, it will either break down into CO2 and contribute to the greenhouse effect, or end up as polluting waste. For every tonne of recycled plastic, 3.8 barrels of oil are saved.