The Harry Potter Advent Calendar is a great holiday challenge for every Harry Potter fan! This 13" × 13.75" outer box comes filled with 24 individually boxed 7" × 9" 100 piece MINI Puzzles. The Harry Potter Advent Calendar includes Harry Potter book illustrations exclusively available in 100 piece minis. For Ages 10 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.