Features: Made of high quality wood, lightweight, non-toxic and safe to play with. The surfaces are smooth without burrs, it will not scratch your child's hands. Educational, perfect for encouraging child's number recognition. Trains children's hand-eye coordination and develops their imagination and creativity. Children can play this toy with families or friends, improving their communication and interaction. Includes a box for convenient carrying or storage when not in use. Specification: Condition: 100% Brand New Material: wood Main Color: Black Suitable age: over 3 years old Wooden box size: 14.6 x 5 x 2.8 cm Size of each card: 3.7 x 1.8 x 2.8 cm approximate weight 108g / 3.81oz Package List: 28-piece children's toy set Note: 1. Please allow 1-3cm error due to manual measurement, thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object, please take the real one as standard.