1) Helps in increasing the childs concentration and focus, and developing their problem-solving skills, visual skills, motor skills, and hand-eye coordination 2) The completed puzzles measure 23.5 x 17 cm 3) A set of 4 cardboard jigsaw puzzles based on the new Disney animated movie Frozen , the popular animated movie. 4) Each puzzle is made up of 9 pieces, 12 pieces, 18 pieces, and 24 pieces, and is suitable for children of 3 years and above.