The 3-pack puzzle contains 3 different puzzles with different levels of difficulty. The puzzles range from 3 to 5 pieces. Once your child can complete the 3-piece puzzle, they can start doing the 4-piece puzzle. The puzzle helps to recognize different shapes and improve hand-eye coordination and fine motor skills. The individual pieces are made extra large, making them easy for a child's little hand to grasp. At the same time, the indentations in the puzzle board make it easier for the toddler to put the pieces in place.