Queens of the Ocean, magical mermaids with long hair flowing and pearls glistening. 35-piece puzzles are great for children aged four and older as it improves their cognitive development through hand-eye coordination, fine motor skills, gross motor skills, problem-solving skills, shape recognition, and memory. Ravensburger has been making puzzles in Ravensburg, Germany since 1891, and their expertise in the field make them the world’s most popular puzzle brand. Finished Puzzle Size: 30 x 21cm.