The product is a hardcover book titled "Hamster Princess: Harriet the Invincible" by author Ursula Vernon. Published by Penguin Young Readers Group in 2015, this book is part of the Hamster Princess Ser. series and features illustrations. With a length of 7.1 inches, a height of 0.8 inches, and a width of 5.7 inches, the book weighs 17.6 ounces and contains 256 pages. It falls under the genre of Juvenile Fiction and explores themes of humor, royalty, fairy tales, folklore adaptations, action, adventure, and general animal stories featuring mice, hamsters, and guinea pigs.