Pogs, also known as milk caps, were a popular children's game and collectible in the 1990s. The game involved stacking cardboard discs and using a heavier disc, called a 'slammer,' to knock them over. Pogs came in a vast array of designs, featuring everything from cartoon characters and sports figures to abstract patterns.

Wayne Gretzky, often referred to as "The Great One," is widely considered the greatest hockey player of all time. His immense popularity during the 1980s and 1990s led to a proliferation of merchandise bearing his likeness, including collectibles like this Pog. This particular item likely capitalized on his fame and the widespread craze for Pogs during that era.