Each year hundreds of thousands of plastic (PVC) top loaders are sold to collectors across America. Many are used for one-time shipping, and very few are recycled. PVC is bad for the environment and wind up in the ocean and landfills, eventually contaminating sea-life and our food chain. Guardhouse is leading an effort to reduce PVC usage in the collectibles industry by introducing eco-friendly collector sentry loaders that are functionally the same and at no additional cost! The Eco-Friendly Guardhouse Topload Card Holder is made of sturdy, 18 mil recycled paper and contains no PVC. The PET window uses 1/15th the petro-polymer material. PET has the added benefit of being safer than PVC. Overall, the Eco-Friendly Holder weighs less than a conventional plastic top loader, which means less waste and less shipping weight