Melissa & Doug 18956 Self-Correcting Number Puzzle Match the wooden puzzle pairs to master letters and numbers! These clever sets feature every letter of the alphabet and numbers 1 to 20, each with a matching puzzle piece to illustrate the concept behind the character. To encourage confidence and independent play, every cut within a set is unique, so each letter or number has only one counting group or vocabulary piece that will fit. Children love being able to correct their own work as they play, learn, and find the perfect fit for each letter and number tile! Self-correcting pieces illustrate letter sounds and counting groups for every letter or number. Colour pictures feature familiar objects to count and name. Wooden storage boxes with slide-in lids 92 wooden puzzle pieces in all Great for matching, counting, and letter-recognition skills Suggested age suitability 4 years and upwards.EU Warning: Not suitable for children under the age of 3 years due to small parts which could cause a choking hazard.