This 20-card set features the top rookies of 1991 and rookie prospects from 1992. The card fronts feature blue borders with "Rookie Sensations" in gold along the top border. The flip sides feature background information on the player. The cards were randomly inserted in 1992 Fleer cello packs. This issue saw very high prices when initially released then suffered long-term declines as the hobby became inundated with more and more insert sets. - 2007 Standard Catalog of Baseball Cards, 16th Edition.