Piece together numbers 1 to 20, each on its own self-correcting matching puzzle with this 40-piece Frank jigsaw puzzle. Each mini-puzzle is self-correcting, so it only fits together the right way — perfect for building early matching and problem-solving skills. Every piece is cut from premium, highly durable cardboard printed with 100% non-toxic, child-safe inks, so it holds up to repeated play. Recommended for kids 3+ Years. Solving it sharpens hand-eye coordination, concentration, memory and problem-solving skills. Made in India by Frank Educational Aids and BIS certified, it's a thoughtful, screen-free gift for birthdays, holidays or a rainy afternoon.