The Teenage Mutant Ninja Turtles Holiday Countdown Advent Calendar by Nickelodeon is a fun and festive way for kids to get into the holiday spirit. With a turtle-themed design and filled with toys, this calendar is perfect for celebrating the holidays with a beloved character family. This calendar is a great way to count down to Christmas while enjoying a touch of nostalgia from the popular Teenage Mutant Ninja Turtles franchise.