Feature Product Name: Children's Track Rolling Ball Educational Toys Product size (approximate): as shown Product weight (approximately): 500g Product material: ABS Age range: 0-3 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 spatial logical thinking ability. 2. Exercise cooperation skills and improve hands-on ability. 3. Enhance the ability to distinguish shapes and things. 4. Promote hand-eye coordination and stimulate sensory development.