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DIY Wireless Remote Control Racing Model Kit Wood Kids Physical Science Experiments Toy Set Assembled Car Preschool Educational Toy Features: Scientific experiment toys, exercise children's practical ability. DIY small toys, cultivate innovative ability. Cultivate scientific knowledge. Select high-quality green environmental wood, safe and environmental friendly. High quality electronic components and accessories, stable performance, safe and reliable. Knowledge involved: radio transmitting and receiving, gear action, and motor principle. Specifications: Material: environmentally friendly wood, plastic and metal components Product size: approx. 11.5x11.5x10cm/4.53x4.53x3.94inch Suitable age: over 10 years old Type of toy: intellectual development Reminder: This product does not contains paints and paintbrushes. The battery needs to be purchased. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement.