EARLY MATH LEARNING: Math learning game for kids oral arithmetic skill levels in addition, subtraction, multiplication and division. FEATURE: The calculator helps mental arithmetic exercise, brain development, knowledge strengthening, logic exercise, etc. DIGITAL DISPLAY: Digit display, can consolidate wrong questions and timed answer questions. PORTABLE: Compact, easy to carry, with writing tablet. GIFT: This learning toy is a great gift for 3 year old boys and girls for birthdays, Christmas, Halloween and other holidays.EARLY MATH LEARNING: Math learning game for kids oral arithmetic skill levels in addition, subtraction, multiplication and division. FEATURE: The calculator helps mental arithmetic exercise, brain development, knowledge strengthening, logic exercise, etc. DIGITAL DISPLAY: Digit display, automatic problem determination, special training, and are easy to use. PORTABLE: Compact, easy to carry, with writing tablet. GIFT: This learning toy is a great gift for 3 year old boys and girls for birthdays, Christmas, Halloween and other holidays. Specification: Material: ABS Size Chart: 19.3cmx12.5cm/7.60inchx4.92inch Package Includes: 1 Electronic Calculator Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.