The product is a set of "Genius Deck Riddles" containing 75 riddles and conundrums in flash card format. Published by Chronicle Books in 2005 as part of the Genius Decks Ser., this deck is designed for children and features humor, jokes, and puzzles to engage young minds. The cards are compact, with dimensions of 4.9 inches in length, 3.5 inches in width, and 1.2 inches in height, making them portable and easy to carry for entertainment on the go. The riddles are in English and provide a fun and interactive way for children to challenge themselves mentally.