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