Princess Tower 100 Piece Puzzle: Princess Tower 100 Piece Puzzle: Since 1891 we’ve been making the finest puzzles and it’s our attention to detail which makes Ravensburger the world’s greatest puzzle brand! Experience the quality you can grow with – piece by piece! Ravensburger puzzle pieces are extra durable to withstand the demands of little hands and promote the development of fine motor skills, association, task completion and independent play. This 100 piece puzzle measures 19.5″ × 14.25″ when complete. For ages 6 and up.