Elements Binders by Aurora-GB feature a 100% recycled paperboard core made with 70% post-consumer waste, offering the sturdiness and long-lasting performance Aurora Products are known for. Each binder is covered with 100% landfill-safe polypropylene with linen embossing. These round ring binders are built for long-lasting performance with a heavy duty 3-ring mechanism. These durable binders won't warp in the heat or crack in the cold. Aurora products are , made with no volatile organic compounds, so being green has never been so easy or looked so good!