Strong, reinforced edges prevent tears. Top-loading sheet protectors are pre-punched to fit standard three-ring binder. This allows for documents to remain in their original state. The acid-free, archival quality polypropylene material eliminates photocopy transfer. Sheet protectors are a durable storage option for important documents and reference materials. Three-hole punched for unpunched sheets. Load Orientation: Top; Sheet Protector Type: Ring Binder.