This is a pack of 1997 Dart FlipCards Lone Ranger cards. The cards are standard 2x3 and feature borderless images. The images are done as artwork prints and show comic book covers, movie posters, various scenes, and other depictions. The base set contains 72 cards. In addition to the base, there are die-cut cards, mail-in stand-up cards, and a limited run of autographed cards. There are various cards which were never released to the public as well, apparently. See link at bottom for details about the set.
As mentioned, these cards are borderless, allowing the image to take up the full front of the card. This one features the Lone Ranger taking down a (presumed) baddie:
The checklist, along with inserts, unreleased items, etc: