THIS PUZZLE IS PERFECT FOR COMPARING SIZES AND COMPARING THE SIMILAR SHAPES OF THE PUZZLE PIECES. PERFECT FOR BABIES/TODDLERS STARTING AT 13 MONTHS. Skills: Develop spatial skills and 2-D shape recognition Practice fine motor and problem-solving skills Pincer grasp Recognize real faces with diverse, Montessori-aligned images Replace the faces with family members or other content as baby grows (life cycles of a frog, for example!) Details: Baby-safe materials FSC-certified, sustainably sourced wood Water-based, nontoxic finishes