Most pencils are made from wood, and most pens are made from plastic and other toxic materials. Green Home encourages you to instead buy pens that are made from recycled materials. Our recycled pens are made from post-consumer recovered Polypropylene. If you have small children you know that they like to put everything in sight in their mouths, so you may want to consider our non-toxic markers and highlighters, which are much safer than commercial ones! They also save you from having to breathe in those fumes and getting a headache when you're trying to focus on a project. Much better for both your health and the environment!