A.The Plastic seats with the eco-friendly icon are made by Bemis, who uses a co-injection molding process that reuses the excess plastics that are created with each molding. This includes as much as 60 percent pre- and/or post-consumer plastic in the core of the seat. This saves millions of pounds of plastic from landfills and waste facilities. All Bemis wood seats are made from rediscovered wood from 100 percent recycled sources - absolutely no trees are cut down to make their wood seats. Both the plastic and wooden seats use environmentally friendly colorants and water-based paints to significantly reduce VOC emissions, providing you the consumer with a product that has significantly less residual emissions than many other toilet seats.