Tyvek Reinforced Pressboard Report Cover is made of sturdy, genuine, moisture-resistant 20 point pressboard. Ideal for preserving important documents for presentations or filing. Efficient two-piece steel prong fastener adjusts to the size of the contents, letting you store binders in a minimum of shelf or drawer space. Fastener prongs are 2-3/4" center to center and provide a 2" capacity. Report cover contains 50 percent recycled material and 30 percent post-consumer material.