Happy Cherry Colorful Magnetic Number 0-9 Wooden Fridge Magnets Kid Funky Toys Safe Material: 10 pcs wooden numbers with high quality magnet,bond by professional adhesives,no heavy metal,no harmful substances,no odor,super safe to you kids Best Educational Toys:Adorable numbers with bright colors can catch kids attention,practice simple math addition, subtraction, multiplication and division,great for math development and enrich their imagination,teach pre-schoolers the basics whilst they play Good Adhesion:the magnets will not falling off the refrigerator but still easy to move over surface,the cartoon patterns hold up with the magnets well ,will not wear off or crumble Perfect For Kids:Developed and tested to be the perfect size for kid's little fingers,Kids under 3 years is suggested to play with it under parents custody Size:The item size is about 4*5.8cm,thickness is about 0.5cm,there maybe small differences because of different pattern