Melissa & DougWooden Jigsaw Puzzle Set - Mermaids and Butterflies Two 48-piece wooden jigsaw puzzles in favorite themes: mermaids and butterflies. Colorful and detailed pictures make these the ideal preschool jigsaw puzzles. Sturdy wooden puzzle boards frame the puzzle during play and keep pieces together for easy storage. Sturdy wooden construction. Great for problem-solving, observation skills, fine motor skills and hand-eye coordination.