This is a set of baseball cards made by Donruss Diamond Kings from 1987', 89' & 90'
They are orange and blue and feature artist depiction of each player on the front with a character summary on the back, there are several copies of the same card with certain players and multiple checklists. Teams include the Astros, Pirates, Braves, Blue Jays, Expos, Giants, Athletics, Dodgers, Padres, Cardinals, Twins, Reds, Royals and Tigers.
They all measure 3 1/2" by 2 1/2" and were printed in the USA by Leaf, Inc.
This set comes in good pre-owned condition.