"Clear front & Clear back. Straight forward and un-obtrusive. The only inner sleeve you'll ever need. This innovative design offers full four-edge protection - without glue! Now you can double-sleeve, re-sleeve and handle your cards without risking smudges and fingerprints. Used by the professor himself, Dragon Shield perfect fits are his #1 pick for inner sleeves. Perfect Fit Sealable are easy to double-sleeve. PVC-free polypropylene sleeves, no acid. Archival safe. 100/50 μm quality thickness. For cards measuring up to 63x88 mm's (2½""x3½"")."