These premium soft card sleeves provide essential protection for standard-sized trading cards, measuring 66mm x 91mm. Designed to safeguard against dust, moisture, and surface scratches, these "penny sleeves" are a critical first line of defense for high-value collectibles before they are placed in top loaders or binders. The acid-free, PVC-free construction ensures long-term archival safety, preventing chemical reactions that can degrade card surfaces or ink over time. This pack contains 100 clear, flexible sleeves suitable for sports cards, gaming cards, and various standard trading card sets.