The product is a lot of 3 Pokemon Trading Card Game cards featuring the character Diancie. These cards are part of the Mega series, known for their powerful abilities and unique designs. As collectible card games go, Pokemon TCG cards are sought after by fans and collectors alike for their rarity and gameplay value. This lot of cards would be a valuable addition to any Pokemon TCG collection, especially for those who appreciate the character Diancie and the Mega series.