Feature Product name: Mathematical arithmetic learning math toys Product size (approximately): Boxed: 24*21.5*6cm Product weight (approximately): 350g Product material: plastic Age range: 3-6 years old Number of pieces: 1 set Note: 1. Please be careful when opening the package to avoid product damage. 2. If you have any questions, please contact us in time, we will reply you within 12 hours (If we did not reply in time due to the regional time difference, please understand.) Product use method and function: 1. Cultivate children's logical thinking ability. 2. Learn basic mathematics and arithmetic operations to improve your hands-on ability. 3. Enhance the ability to distinguish shapes and things. 4. Promote hand-eye coordination and stimulate sensory development.