Product descriptionSuitable age: 3-6 years oldName:Mathematics textbookNote: please allow 1-3 mm errors to the actual dimension due to manual measurement! Thank you !Real color may slightly different from pictures due to computer screen's resolution, brightness, contrast etc. If you have any question, please contact us before leave negative feedback, we will try our best to serve you, thank you for your understanding!HOPE YOU HAVE A NICE SHOPPING!