(1pk of 100) Cardboard Gold CBG POSTCARD Pro Sleeves Next Generation Archival Protection PRO Sleeves KEEPS POSTCARD Collections ULTRA PROTECTED This is it! The next generation of collectible holders and protection is here! Cardboard Gold brand Sleeves provide you with the ultimate in protection. We have been making PVC Free, Polypropylene Soft Card Sleeves Since 1986. The only thing that has NOT changed is our consistent high quality for almost 30 years! We use the highest clarity 2 mil polypropylene and exacting manufacturing so that sizing is consistent. Super Clear! Our postcard soft sleeves are manufactured to exacting standards using the highest clarity 2 mil polypropylene. Only Cardboard Gold postcard sleeves feature the legendary, 30 year track record of quality and consistent sizing. Every size is 3 11/16" X 5 3/4" for a perfect fit for collectible postcards. 100 per Package